# MailWriter Class The MailWriter class composes, encrypts, and signs e-mail messages. ## Syntax ```text class secureblackbox.MailWriter ``` ## Remarks Use MailWriter to compose, sign, and encrypt e-mail messages, and prepare them for sending or saving. Preparing a very simple message and saving it to a file: ```text MailWriter writer = new MailWriter(); writer.From.Add(new MailAddress("John Doe", "jdoe@company.com")); writer.SendTo.Add(new MailAddress("Mary Dow", "mdow@home.com")); writer.Message.Subject = "Lating to the party"; writer.Message.PlainText = "Hi Mary!\r\nStill in the office waiting for my partner.\r\nProbably I'll be late to the party for about an hour.\r\nSorry.\r\nJohn"; writer.SaveToFile("path\\message.eml"); ``` Attaching an image and referencing it from the message text: ```text writer.AttachImage("myimage", File.ReadAllBytes("path\\image.jpg")); writer.Attachments[0].ContentSubtype = "jpeg"; writer.Message.HtmlText = "Message with an image

"; ``` Signing a message with a certificate (note that the certificate should contain its private key): ```text CertificateManager manager = new CertificateManager(); manager.ImportFromFile("path\\cert.pfx", "password"); writer.SecuritySettings.Sign = true; writer.SecuritySettings.HashAlgorithm = "SHA256"; writer.SigningCertificate = manager.Certificate; writer.SaveToFile("path\\message.eml"); ``` Encrypting a message with one or more certificates (no private key is required): ```text CertificateManager manager = new CertificateManager(); manager.ImportFromFile("path\\cert.cer", ""); writer.SecuritySettings.Encrypt = true; writer.SecuritySettings.EncryptionAlgorithm = "AES256"; writer.EncryptionCertificates.Add(manager.Certificate); // add more certificates if needed writer.SaveToFile("D:\\test.eml"); ``` ## Property List *The following is the full list of the properties of the class with short descriptions. Click on the links for further details.* | | | | --- | --- | | [attach_count](#attach_count-property) | The number of records in the Attach arrays. | | [attach_content_subtype](#attach_content_subtype-property) | Contains the content subtype of the attachment. | | [attach_content_type](#attach_content_type-property) | Contains the content type of the attachment. | | [attach_creation_date](#attach_creation_date-property) | The creation date. | | [attach_data](#attach_data-property) | The content of the attachment. | | [attach_description](#attach_description-property) | Textual description of the attachment. | | [attach_file_name](#attach_file_name-property) | Specifies the name of the attachment file. | | [attach_handle](#attach_handle-property) | Allows to get or set a 'handle', a unique identifier of the underlying property object. | | [attach_id](#attach_id-property) | Contains the attachment's unique identifier. | | [attach_modification_date](#attach_modification_date-property) | Specifies the date and time of the file's last modification. | | [attach_read_date](#attach_read_date-property) | Specifies the file's last read date. | | [attach_size](#attach_size-property) | The attachment's size in bytes. | | [attach_encoding](#attach_encoding-property) | The encoding to be applied to the attachments. | | [bcc](#bcc-property) | The number of records in the BccAddr arrays. | | [bcc](#bcc-property-1) | Contains the e-mail address in the form of john@doe. | | [bcc](#bcc-property-2) | Contains the friendly name of the user of this address, such as John Doe. | | [bcc](#bcc-property-3) | The name of the group this address belongs to. | | [cc_addr_count](#cc_addr_count-property) | The number of records in the CcAddr arrays. | | [cc_addr_address](#cc_addr_address-property) | Contains the e-mail address in the form of john@doe. | | [cc_addr_display_name](#cc_addr_display_name-property) | Contains the friendly name of the user of this address, such as John Doe. | | [cc_addr_group_name](#cc_addr_group_name-property) | The name of the group this address belongs to. | | [charset](#charset-property) | The charset to apply to Message . | | [encryption_cert_count](#encryption_cert_count-property) | The number of records in the EncryptionCert arrays. | | [encryption_cert_bytes](#encryption_cert_bytes-property) | Returns the raw certificate data in DER format. | | [encryption_cert_handle](#encryption_cert_handle-property) | Allows to get or set a 'handle', a unique identifier of the underlying property object. | | [external_crypto_async_document_id](#external_crypto_async_document_id-property) | Specifies an optional document ID for SignAsyncBegin() and SignAsyncEnd() calls. | | [external_crypto_custom_params](#external_crypto_custom_params-property) | Custom parameters to be passed to the signing service (uninterpreted). | | [external_crypto_data](#external_crypto_data-property) | Additional data to be included in the async state and mirrored back by the requestor. | | [external_crypto_external_hash_calculation](#external_crypto_external_hash_calculation-property) | Specifies whether the message hash is to be calculated at the external endpoint. | | [external_crypto_hash_algorithm](#external_crypto_hash_algorithm-property) | Specifies the request's signature hash algorithm. | | [external_crypto_key_id](#external_crypto_key_id-property) | The ID of the pre-shared key used for DC request authentication. | | [external_crypto_key_secret](#external_crypto_key_secret-property) | The pre-shared key used for DC request authentication. | | [external_crypto_method](#external_crypto_method-property) | Specifies the asynchronous signing method. | | [external_crypto_mode](#external_crypto_mode-property) | Specifies the external cryptography mode. | | [external_crypto_public_key_algorithm](#external_crypto_public_key_algorithm-property) | Provide the public key algorithm here if the certificate is not available on the pre-signing stage. | | [fips_mode](#fips_mode-property) | Reserved. | | [author](#author-property) | The number of records in the FromAddr arrays. | | [author](#author-property-1) | Contains the e-mail address in the form of john@doe. | | [author](#author-property-2) | Contains the friendly name of the user of this address, such as John Doe. | | [author](#author-property-3) | The name of the group this address belongs to. | | [header_encoding](#header_encoding-property) | The encoding to be applied to the message header. | | [header_field_count](#header_field_count-property) | The number of records in the HeaderField arrays. | | [header_field_category](#header_field_category-property) | Specifies the string category of the contained value. | | [header_field_format](#header_field_format-property) | Specifies the format (encoding) of the value contained in the Value property. | | [header_field_name](#header_field_name-property) | The name element in a (name, value) pair. | | [header_field_value](#header_field_value-property) | The value element in a (name, value) pair. | | [mailer](#mailer-property) | The name of the software used to compose and/or send the message. | | [msg_attachment_count](#msg_attachment_count-property) | Returns the number of attachments in this message. | | [msg_bcc](#msg_bcc-property) | The contents of the BCC header property. | | [msg_cc](#msg_cc-property) | The value of the CC header property. | | [msg_comments](#msg_comments-property) | Contains additional information about the message body. | | [msg_date](#msg_date-property) | The date and time when the message entered the mail delivery system. | | [msg_delivery_receipt](#msg_delivery_receipt-property) | Enables delivery notification. | | [msg_from](#msg_from-property) | Contains the value of the From header property. | | [msg_handle](#msg_handle-property) | Allows to get or set a 'handle', a unique identifier of the underlying property object. | | [msg_html_text](#msg_html_text-property) | The HTML version of the message. | | [msg_id](#msg_id-property) | The contents of the Message-ID header property. | | [msg_in_reply_to](#msg_in_reply_to-property) | The value of the In-Reply-To header property. | | [msg_keywords](#msg_keywords-property) | The value of the Keywords header property. | | [msg_mailer](#msg_mailer-property) | The name of the software that was used to send the message. | | [msg_plain_text](#msg_plain_text-property) | The plain text version of the message. | | [msg_priority](#msg_priority-property) | Specifies the message priority. | | [msg_read_receipt](#msg_read_receipt-property) | Enables a read notification. | | [msg_references](#msg_references-property) | The value of the References header property. | | [msg_reply_to](#msg_reply_to-property) | The value of the Reply-To header property. | | [msg_return_path](#msg_return_path-property) | The value of the Return-Path header property. | | [msg_sender](#msg_sender-property) | The value of the Sender header property. | | [msg_send_to](#msg_send_to-property) | The value of the To header property. | | [msg_subject](#msg_subject-property) | Contains the subject property of this message. | | [profile](#profile-property) | Specifies a pre-defined profile to apply when creating the signature. | | [reply_to_addr_count](#reply_to_addr_count-property) | The number of records in the ReplyToAddr arrays. | | [reply_to_addr_address](#reply_to_addr_address-property) | Contains the e-mail address in the form of john@doe. | | [reply_to_addr_display_name](#reply_to_addr_display_name-property) | Contains the friendly name of the user of this address, such as John Doe. | | [reply_to_addr_group_name](#reply_to_addr_group_name-property) | The name of the group this address belongs to. | | [sec_settings_claimed_signing_time](#sec_settings_claimed_signing_time-property) | Specifies the signing time from the signer's computer. | | [sec_settings_encrypt](#sec_settings_encrypt-property) | Whether to encrypt the message. | | [sec_settings_encryption_algorithm](#sec_settings_encryption_algorithm-property) | Specifies the encryption algorithm to be used. | | [sec_settings_hash_algorithm](#sec_settings_hash_algorithm-property) | Specifies the hash algorithm to be used. | | [sec_settings_sign](#sec_settings_sign-property) | Whether to sign the message. | | [sec_settings_signature_format](#sec_settings_signature_format-property) | Specifies the signature format to use for the signed message. | | [sec_settings_sign_before_encrypt](#sec_settings_sign_before_encrypt-property) | Specifies the order of encryption and signing operations. | | [sec_settings_sign_message_header](#sec_settings_sign_message_header-property) | Specifies whether to include the message header in the signature calculation. | | [sender_addr_address](#sender_addr_address-property) | Contains the e-mail address in the form of john@doe. | | [sender_addr_display_name](#sender_addr_display_name-property) | Contains the friendly name of the user of this address, such as John Doe. | | [sender_addr_group_name](#sender_addr_group_name-property) | The name of the group this address belongs to. | | [send_to_addr_count](#send_to_addr_count-property) | The number of records in the SendToAddr arrays. | | [send_to_addr_address](#send_to_addr_address-property) | Contains the e-mail address in the form of john@doe. | | [send_to_addr_display_name](#send_to_addr_display_name-property) | Contains the friendly name of the user of this address, such as John Doe. | | [send_to_addr_group_name](#send_to_addr_group_name-property) | The name of the group this address belongs to. | | [signing_cert_bytes](#signing_cert_bytes-property) | Returns the raw certificate data in DER format. | | [signing_cert_handle](#signing_cert_handle-property) | Allows to get or set a 'handle', a unique identifier of the underlying property object. | | [signing_chain_count](#signing_chain_count-property) | The number of records in the SigningChain arrays. | | [signing_chain_bytes](#signing_chain_bytes-property) | Returns the raw certificate data in DER format. | | [signing_chain_handle](#signing_chain_handle-property) | Allows to get or set a 'handle', a unique identifier of the underlying property object. | | [text_encoding](#text_encoding-property) | The encoding to be applied to the message. | ## Method List *The following is the full list of the methods of the class with short descriptions. Click on the links for further details.* | | | | --- | --- | | [attach_bytes](#attach_bytes-method) | Creates an attachment from a memory buffer. | | [attach_file](#attach_file-method) | Creates an attachment from a file. | | [attach_image](#attach_image-method) | Creates an image attachment from a memory buffer. | | [config](#config-method) | Sets or retrieves a configuration setting. | | [create_new](#create_new-method) | Creates a template for a new message. | | [do_action](#do_action-method) | Performs an additional action. | | [reset](#reset-method) | Resets the class settings. | | [save_to_bytes](#save_to_bytes-method) | Serializes the message to a byte array. | | [save_to_file](#save_to_file-method) | Serializes the message to a file. | ## Event List *The following is the full list of the events fired by the class with short descriptions. Click on the links for further details.* | | | | --- | --- | | [on_error](#on_error-event) | Reports information about errors during e-mail message assembling or saving. | | [on_external_sign](#on_external_sign-event) | Handles remote or external signing initiated by the SignExternal method or other source. | | [on_notification](#on_notification-event) | This event notifies the application about an underlying control flow event. | ## Config Settings *The following is a list of config settings for the class with short descriptions. Click on the links for further details.* | | | | --- | --- | | [BitsInKey](#BitsInKey) | Key length for the block cipher used for encryption. The value should be a multiple of 8. | | [IncludeSigningCertificate](#IncludeSigningCertificate) | If true (by default), the signing certificate is included into the signature. Otherwise, it is included only if SigningChain is not empty. | | [TempPath](#TempPath) | Path for storing temporary files. | | [ASN1UseGlobalTagCache](#ASN1UseGlobalTagCache) | Controls whether ASN.1 module should use a global object cache. | | [AssignSystemSmartCardPins](#AssignSystemSmartCardPins) | Specifies whether CSP-level PINs should be assigned to CNG keys. | | [CheckKeyIntegrityBeforeUse](#CheckKeyIntegrityBeforeUse) | Enables or disable private key integrity check before use. | | [CookieCaching](#CookieCaching) | Specifies whether a cookie cache should be used for HTTP(S) transports. | | [Cookies](#Cookies) | Gets or sets local cookies for the class. | | [DefDeriveKeyIterations](#DefDeriveKeyIterations) | Specifies the default key derivation algorithm iteration count. | | [DNSLocalSuffix](#DNSLocalSuffix) | The suffix to assign for TLD names. | | [EnableClientSideSSLFFDHE](#EnableClientSideSSLFFDHE) | Enables or disables finite field DHE key exchange support in TLS clients. | | [EnableSSHMLKEM](#EnableSSHMLKEM) | Enables support for ML-KEM/hybrid key exchange algorithms in SSH client and server classes. | | [EnableTLSMLKEM](#EnableTLSMLKEM) | Enables support for ML-KEM and hybrid groups in TLS client and server classes. | | [GlobalCookies](#GlobalCookies) | Gets or sets global cookies for all the HTTP transports. | | [HardwareCryptoUsePolicy](#HardwareCryptoUsePolicy) | The hardware crypto usage policy. | | [HttpUserAgent](#HttpUserAgent) | Specifies the user agent name to be used by all HTTP clients. | | [HttpVersion](#HttpVersion) | The HTTP version to use in any inner HTTP client classes created. | | [IgnoreExpiredMSCTLSigningCert](#IgnoreExpiredMSCTLSigningCert) | Whether to tolerate the expired Windows Update signing certificate. | | [ListDelimiter](#ListDelimiter) | The delimiter character for multi-element lists. | | [LogDestination](#LogDestination) | Specifies the debug log destination. | | [LogDetails](#LogDetails) | Specifies the debug log details to dump. | | [LogFile](#LogFile) | Specifies the debug log filename. | | [LogFilters](#LogFilters) | Specifies the debug log filters. | | [LogFlushMode](#LogFlushMode) | Specifies the log flush mode. | | [LogLevel](#LogLevel) | Specifies the debug log level. | | [LogMaxEventCount](#LogMaxEventCount) | Specifies the maximum number of events to cache before further action is taken. | | [LogRotationMode](#LogRotationMode) | Specifies the log rotation mode. | | [MaxASN1BufferLength](#MaxASN1BufferLength) | Specifies the maximal allowed length for ASN.1 primitive tag data. | | [MaxASN1TreeDepth](#MaxASN1TreeDepth) | Specifies the maximal depth for processed ASN.1 trees. | | [OCSPHashAlgorithm](#OCSPHashAlgorithm) | Specifies the hash algorithm to be used to identify certificates in OCSP requests. | | [OldClientSideRSAFallback](#OldClientSideRSAFallback) | Specifies whether the SSH client should use a SHA1 fallback. | | [PKICache](#PKICache) | Specifies which PKI elements (certificates, CRLs, OCSP responses) should be cached. | | [PKICachePath](#PKICachePath) | Specifies the file system path where cached PKI data is stored. | | [ProductVersion](#ProductVersion) | Returns the version of the SecureBlackbox library. | | [ServerSSLDHKeyLength](#ServerSSLDHKeyLength) | Sets the size of the TLS DHE key exchange group. | | [StaticDNS](#StaticDNS) | Specifies whether static DNS rules should be used. | | [StaticIPAddress\[domain\]](#StaticIPAddress[domain]) | Gets or sets an IP address for the specified domain name. | | [StaticIPAddresses](#StaticIPAddresses) | Gets or sets all the static DNS rules. | | [Tag](#Tag) | Allows to store any custom data. | | [TLSSessionGroup](#TLSSessionGroup) | Specifies the group name of TLS sessions to be used for session resumption. | | [TLSSessionLifetime](#TLSSessionLifetime) | Specifies lifetime in seconds of the cached TLS session. | | [TLSSessionPurgeInterval](#TLSSessionPurgeInterval) | Specifies how often the session cache should remove the expired TLS sessions. | | [UseCRLObjectCaching](#UseCRLObjectCaching) | Specifies whether reuse of loaded CRL objects is enabled. | | [UseInternalRandom](#UseInternalRandom) | Switches between SecureBlackbox-own and platform PRNGs. | | [UseLegacyAdESValidation](#UseLegacyAdESValidation) | Enables legacy AdES validation mode. | | [UseOCSPResponseObjectCaching](#UseOCSPResponseObjectCaching) | Specifies whether reuse of loaded OCSP response objects is enabled. | | [UseOwnDNSResolver](#UseOwnDNSResolver) | Specifies whether the client classes should use own DNS resolver. | | [UseSharedSystemStorages](#UseSharedSystemStorages) | Specifies whether the validation engine should use a global per-process copy of the system certificate stores. | | [UseSystemNativeSizeCalculation](#UseSystemNativeSizeCalculation) | An internal CryptoAPI access tweak. | | [UseSystemOAEPAndPSS](#UseSystemOAEPAndPSS) | Enforces or disables the use of system-driven RSA OAEP and PSS computations. | | [UseSystemRandom](#UseSystemRandom) | Enables or disables the use of the OS PRNG. | | [XMLRDNDescriptorName\[OID\]](#XMLRDNDescriptorName[OID]) | Defines an OID mapping to descriptor names for the certificate's IssuerRDN or SubjectRDN. | | [XMLRDNDescriptorPriority\[OID\]](#XMLRDNDescriptorPriority[OID]) | Specifies the priority of descriptor names associated with a specific OID. | | [XMLRDNDescriptorReverseOrder](#XMLRDNDescriptorReverseOrder) | Specifies whether to reverse the order of descriptors in RDN. | | [XMLRDNDescriptorSeparator](#XMLRDNDescriptorSeparator) | Specifies the separator used between descriptors in RDN. | # attach_count property The number of records in the Attach arrays. ## Syntax ```text def get_attach_count() -> int: ... def set_attach_count(value: int) -> None: ... attach_count = property(get_attach_count, set_attach_count) ``` ## Default Value 0 ## Remarks This property controls the size of the following arrays: - [attach_content_subtype](#attach_content_subtype-property) - [attach_content_type](#attach_content_type-property) - [attach_creation_date](#attach_creation_date-property) - [attach_data](#attach_data-property) - [attach_description](#attach_description-property) - [attach_file_name](#attach_file_name-property) - [attach_handle](#attach_handle-property) - [attach_id](#attach_id-property) - [attach_modification_date](#attach_modification_date-property) - [attach_read_date](#attach_read_date-property) - [attach_size](#attach_size-property) The array indices start at *0* and end at *attach_count - 1*. # attach_content_subtype property Contains the content subtype of the attachment. ## Syntax ```text def get_attach_content_subtype(attach_index: int) -> str: ... def set_attach_content_subtype(attach_index: int, value: str) -> None: ... ``` ## Default Value "" ## Remarks Contains the content subtype of the attachment. The *attach_index* parameter specifies the index of the item in the array. The size of the array is controlled by the [attach_count](#attach_count-property) property. # attach_content_type property Contains the content type of the attachment. ## Syntax ```text def get_attach_content_type(attach_index: int) -> str: ... def set_attach_content_type(attach_index: int, value: str) -> None: ... ``` ## Default Value "" ## Remarks Contains the content type of the attachment. The *attach_index* parameter specifies the index of the item in the array. The size of the array is controlled by the [attach_count](#attach_count-property) property. # attach_creation_date property The creation date. ## Syntax ```text def get_attach_creation_date(attach_index: int) -> str: ... def set_attach_creation_date(attach_index: int, value: str) -> None: ... ``` ## Default Value "" ## Remarks The creation date. The *attach_index* parameter specifies the index of the item in the array. The size of the array is controlled by the [attach_count](#attach_count-property) property. # attach_data property The content of the attachment. ## Syntax ```text def get_attach_data(attach_index: int) -> bytes: ... def set_attach_data(attach_index: int, value: bytes) -> None: ... ``` ## Remarks The content of the attachment. The *attach_index* parameter specifies the index of the item in the array. The size of the array is controlled by the [attach_count](#attach_count-property) property. # attach_description property Textual description of the attachment. ## Syntax ```text def get_attach_description(attach_index: int) -> str: ... def set_attach_description(attach_index: int, value: str) -> None: ... ``` ## Default Value "" ## Remarks Textual description of the attachment. This property maps to the Content-Description e-mail header field. Although the field is optional, the ability to associate descriptive information with a given body is often desirable. One example is specifying the title of an image using this property. The *attach_index* parameter specifies the index of the item in the array. The size of the array is controlled by the [attach_count](#attach_count-property) property. # attach_file_name property Specifies the name of the attachment file. ## Syntax ```text def get_attach_file_name(attach_index: int) -> str: ... def set_attach_file_name(attach_index: int, value: str) -> None: ... ``` ## Default Value "" ## Remarks Specifies the name of the attachment file. The *attach_index* parameter specifies the index of the item in the array. The size of the array is controlled by the [attach_count](#attach_count-property) property. # attach_handle property Allows to get or set a 'handle', a unique identifier of the underlying property object. ## Syntax ```text def get_attach_handle(attach_index: int) -> int: ... def set_attach_handle(attach_index: int, value: int) -> None: ... ``` ## Default Value 0 ## Remarks Allows to get or set a 'handle', a unique identifier of the underlying property object. Use this property to assign objects of the same type in a quicker manner, without copying them fieldwise. When you pass a handle of one object to another, the source object is copied to the destination rather than assigned. It is safe to get rid of the original object after such operation. ```text pdfSigner.setSigningCertHandle(certMgr.getCertHandle()); ``` The *attach_index* parameter specifies the index of the item in the array. The size of the array is controlled by the [attach_count](#attach_count-property) property. # attach_id property Contains the attachment's unique identifier. ## Syntax ```text def get_attach_id(attach_index: int) -> str: ... def set_attach_id(attach_index: int, value: str) -> None: ... ``` ## Default Value "" ## Remarks Contains the attachment's unique identifier. The *attach_index* parameter specifies the index of the item in the array. The size of the array is controlled by the [attach_count](#attach_count-property) property. # attach_modification_date property Specifies the date and time of the file's last modification. ## Syntax ```text def get_attach_modification_date(attach_index: int) -> str: ... def set_attach_modification_date(attach_index: int, value: str) -> None: ... ``` ## Default Value "" ## Remarks Specifies the date and time of the file's last modification. The *attach_index* parameter specifies the index of the item in the array. The size of the array is controlled by the [attach_count](#attach_count-property) property. # attach_read_date property Specifies the file's last read date. ## Syntax ```text def get_attach_read_date(attach_index: int) -> str: ... def set_attach_read_date(attach_index: int, value: str) -> None: ... ``` ## Default Value "" ## Remarks Specifies the file's last read date. The *attach_index* parameter specifies the index of the item in the array. The size of the array is controlled by the [attach_count](#attach_count-property) property. # attach_size property The attachment's size in bytes. ## Syntax ```text def get_attach_size(attach_index: int) -> int: ... def set_attach_size(attach_index: int, value: int) -> None: ... ``` ## Default Value 0 ## Remarks The attachment's size in bytes. The *attach_index* parameter specifies the index of the item in the array. The size of the array is controlled by the [attach_count](#attach_count-property) property. # attach_encoding property The encoding to be applied to the attachments. ## Syntax ```text def get_attach_encoding() -> int: ... def set_attach_encoding(value: int) -> None: ... attach_encoding = property(get_attach_encoding, set_attach_encoding) ``` ## Possible Values ```text 0 # Auto1 # 8bit2 # Base643 # QuotedPrintable ``` ## Default Value 0 ## Remarks Use this property to specify the encoding method for the attached files. | | | | | --- | --- | --- | | meAuto | 0 | | | me8bit | 1 | | | meBase64 | 2 | | | meQuotedPrintable | 3 | | # bcc property The number of records in the BccAddr arrays. ## Syntax ```text def get_bcc() -> int: ... def set_bcc(value: int) -> None: ... bcc = property(get_bcc, set_bcc) ``` ## Default Value 0 ## Remarks This property controls the size of the following arrays: - [bcc_addr_address](#bcc-property-1) - [bcc_addr_display_name](#bcc-property-2) - [bcc_addr_group_name](#bcc-property-3) The array indices start at *0* and end at *bcc_addr_count - 1*. # bcc property Contains the e-mail address in the form of john@doe. ## Syntax ```text def get_bcc(bcc_addr_index: int) -> str: ... def set_bcc(bcc_addr_index: int, value: str) -> None: ... ``` ## Default Value "" ## Remarks Contains the e-mail address in the form of john@doe.com. The *bcc_addr_index* parameter specifies the index of the item in the array. The size of the array is controlled by the [bcc_addr_count](#bcc-property) property. # bcc property Contains the friendly name of the user of this address, such as John Doe. ## Syntax ```text def get_bcc(bcc_addr_index: int) -> str: ... def set_bcc(bcc_addr_index: int, value: str) -> None: ... ``` ## Default Value "" ## Remarks Contains the friendly name of the user of this address, such as John Doe. The *bcc_addr_index* parameter specifies the index of the item in the array. The size of the array is controlled by the [bcc_addr_count](#bcc-property) property. # bcc property The name of the group this address belongs to. ## Syntax ```text def get_bcc(bcc_addr_index: int) -> str: ... def set_bcc(bcc_addr_index: int, value: str) -> None: ... ``` ## Default Value "" ## Remarks The name of the group this address belongs to. The *bcc_addr_index* parameter specifies the index of the item in the array. The size of the array is controlled by the [bcc_addr_count](#bcc-property) property. # cc_addr_count property The number of records in the CcAddr arrays. ## Syntax ```text def get_cc_addr_count() -> int: ... def set_cc_addr_count(value: int) -> None: ... cc_addr_count = property(get_cc_addr_count, set_cc_addr_count) ``` ## Default Value 0 ## Remarks This property controls the size of the following arrays: - [cc_addr_address](#cc_addr_address-property) - [cc_addr_display_name](#cc_addr_display_name-property) - [cc_addr_group_name](#cc_addr_group_name-property) The array indices start at *0* and end at *cc_addr_count - 1*. # cc_addr_address property Contains the e-mail address in the form of john@doe. ## Syntax ```text def get_cc_addr_address(cc_addr_index: int) -> str: ... def set_cc_addr_address(cc_addr_index: int, value: str) -> None: ... ``` ## Default Value "" ## Remarks Contains the e-mail address in the form of john@doe.com. The *cc_addr_index* parameter specifies the index of the item in the array. The size of the array is controlled by the [cc_addr_count](#cc_addr_count-property) property. # cc_addr_display_name property Contains the friendly name of the user of this address, such as John Doe. ## Syntax ```text def get_cc_addr_display_name(cc_addr_index: int) -> str: ... def set_cc_addr_display_name(cc_addr_index: int, value: str) -> None: ... ``` ## Default Value "" ## Remarks Contains the friendly name of the user of this address, such as John Doe. The *cc_addr_index* parameter specifies the index of the item in the array. The size of the array is controlled by the [cc_addr_count](#cc_addr_count-property) property. # cc_addr_group_name property The name of the group this address belongs to. ## Syntax ```text def get_cc_addr_group_name(cc_addr_index: int) -> str: ... def set_cc_addr_group_name(cc_addr_index: int, value: str) -> None: ... ``` ## Default Value "" ## Remarks The name of the group this address belongs to. The *cc_addr_index* parameter specifies the index of the item in the array. The size of the array is controlled by the [cc_addr_count](#cc_addr_count-property) property. # charset property The charset to apply to Message . ## Syntax ```text def get_charset() -> str: ... def set_charset(value: str) -> None: ... charset = property(get_charset, set_charset) ``` ## Default Value "utf-8" ## Remarks Use this property to specify the character set to use in the message. # encryption_cert_count property The number of records in the EncryptionCert arrays. ## Syntax ```text def get_encryption_cert_count() -> int: ... def set_encryption_cert_count(value: int) -> None: ... encryption_cert_count = property(get_encryption_cert_count, set_encryption_cert_count) ``` ## Default Value 0 ## Remarks This property controls the size of the following arrays: - [encryption_cert_bytes](#encryption_cert_bytes-property) - [encryption_cert_handle](#encryption_cert_handle-property) The array indices start at *0* and end at *encryption_cert_count - 1*. # encryption_cert_bytes property Returns the raw certificate data in DER format. ## Syntax ```text def get_encryption_cert_bytes(encryption_cert_index: int) -> bytes: ... ``` ## Remarks Returns the raw certificate data in DER format. The *encryption_cert_index* parameter specifies the index of the item in the array. The size of the array is controlled by the [encryption_cert_count](#encryption_cert_count-property) property. This property is read-only. # encryption_cert_handle property Allows to get or set a 'handle', a unique identifier of the underlying property object. ## Syntax ```text def get_encryption_cert_handle(encryption_cert_index: int) -> int: ... def set_encryption_cert_handle(encryption_cert_index: int, value: int) -> None: ... ``` ## Default Value 0 ## Remarks Allows to get or set a 'handle', a unique identifier of the underlying property object. Use this property to assign objects of the same type in a quicker manner, without copying them fieldwise. When you pass a handle of one object to another, the source object is copied to the destination rather than assigned. It is safe to get rid of the original object after such operation. ```text pdfSigner.setSigningCertHandle(certMgr.getCertHandle()); ``` The *encryption_cert_index* parameter specifies the index of the item in the array. The size of the array is controlled by the [encryption_cert_count](#encryption_cert_count-property) property. # external_crypto_async_document_id property Specifies an optional document ID for SignAsyncBegin() and SignAsyncEnd() calls. ## Syntax ```text def get_external_crypto_async_document_id() -> str: ... def set_external_crypto_async_document_id(value: str) -> None: ... external_crypto_async_document_id = property(get_external_crypto_async_document_id, set_external_crypto_async_document_id) ``` ## Default Value "" ## Remarks Specifies an optional document ID for SignAsyncBegin() and SignAsyncEnd() calls. Use this property when working with multi-signature DCAuth requests and responses to uniquely identify documents signed within a larger batch. On the completion stage, this value helps the signing component identify the correct signature in the returned batch of responses. If using batched requests, make sure to set this property to the same value on both the pre-signing (SignAsyncBegin) and completion (SignAsyncEnd) stages. # external_crypto_custom_params property Custom parameters to be passed to the signing service (uninterpreted). ## Syntax ```text def get_external_crypto_custom_params() -> str: ... def set_external_crypto_custom_params(value: str) -> None: ... external_crypto_custom_params = property(get_external_crypto_custom_params, set_external_crypto_custom_params) ``` ## Default Value "" ## Remarks Custom parameters to be passed to the signing service (uninterpreted). # external_crypto_data property Additional data to be included in the async state and mirrored back by the requestor. ## Syntax ```text def get_external_crypto_data() -> str: ... def set_external_crypto_data(value: str) -> None: ... external_crypto_data = property(get_external_crypto_data, set_external_crypto_data) ``` ## Default Value "" ## Remarks Additional data to be included in the async state and mirrored back by the requestor. # external_crypto_external_hash_calculation property Specifies whether the message hash is to be calculated at the external endpoint. ## Syntax ```text def get_external_crypto_external_hash_calculation() -> bool: ... def set_external_crypto_external_hash_calculation(value: bool) -> None: ... external_crypto_external_hash_calculation = property(get_external_crypto_external_hash_calculation, set_external_crypto_external_hash_calculation) ``` ## Default Value FALSE ## Remarks Specifies whether the message hash is to be calculated at the external endpoint. Please note that this mode is not supported by the DCAuth class. If set to true, the class will pass a few kilobytes of to-be-signed data from the document to the OnExternalSign event. This only applies when SignExternal() is called. # external_crypto_hash_algorithm property Specifies the request's signature hash algorithm. ## Syntax ```text def get_external_crypto_hash_algorithm() -> str: ... def set_external_crypto_hash_algorithm(value: str) -> None: ... external_crypto_hash_algorithm = property(get_external_crypto_hash_algorithm, set_external_crypto_hash_algorithm) ``` ## Default Value "SHA256" ## Remarks Specifies the request's signature hash algorithm. | | | | | --- | --- | --- | | SB_HASH_ALGORITHM_SHA1 | SHA1 | | | SB_HASH_ALGORITHM_SHA224 | SHA224 | | | SB_HASH_ALGORITHM_SHA256 | SHA256 | | | SB_HASH_ALGORITHM_SHA384 | SHA384 | | | SB_HASH_ALGORITHM_SHA512 | SHA512 | | | SB_HASH_ALGORITHM_MD2 | MD2 | | | SB_HASH_ALGORITHM_MD4 | MD4 | | | SB_HASH_ALGORITHM_MD5 | MD5 | | | SB_HASH_ALGORITHM_RIPEMD160 | RIPEMD160 | | | SB_HASH_ALGORITHM_CRC32 | CRC32 | | | SB_HASH_ALGORITHM_SSL3 | SSL3 | | | SB_HASH_ALGORITHM_GOST_R3411_1994 | GOST1994 | | | SB_HASH_ALGORITHM_WHIRLPOOL | WHIRLPOOL | | | SB_HASH_ALGORITHM_POLY1305 | POLY1305 | | | SB_HASH_ALGORITHM_SHA3_224 | SHA3_224 | | | SB_HASH_ALGORITHM_SHA3_256 | SHA3_256 | | | SB_HASH_ALGORITHM_SHA3_384 | SHA3_384 | | | SB_HASH_ALGORITHM_SHA3_512 | SHA3_512 | | | SB_HASH_ALGORITHM_BLAKE2S_128 | BLAKE2S_128 | | | SB_HASH_ALGORITHM_BLAKE2S_160 | BLAKE2S_160 | | | SB_HASH_ALGORITHM_BLAKE2S_224 | BLAKE2S_224 | | | SB_HASH_ALGORITHM_BLAKE2S_256 | BLAKE2S_256 | | | SB_HASH_ALGORITHM_BLAKE2B_160 | BLAKE2B_160 | | | SB_HASH_ALGORITHM_BLAKE2B_256 | BLAKE2B_256 | | | SB_HASH_ALGORITHM_BLAKE2B_384 | BLAKE2B_384 | | | SB_HASH_ALGORITHM_BLAKE2B_512 | BLAKE2B_512 | | | SB_HASH_ALGORITHM_SHAKE_128 | SHAKE_128 | | | SB_HASH_ALGORITHM_SHAKE_256 | SHAKE_256 | | | SB_HASH_ALGORITHM_SHAKE_128_LEN | SHAKE_128_LEN | | | SB_HASH_ALGORITHM_SHAKE_256_LEN | SHAKE_256_LEN | | # external_crypto_key_id property The ID of the pre-shared key used for DC request authentication. ## Syntax ```text def get_external_crypto_key_id() -> str: ... def set_external_crypto_key_id(value: str) -> None: ... external_crypto_key_id = property(get_external_crypto_key_id, set_external_crypto_key_id) ``` ## Default Value "" ## Remarks The ID of the pre-shared key used for DC request authentication. Asynchronous DCAuth-driven communication requires that parties authenticate each other with a secret pre-shared cryptographic key. This provides an extra protection layer for the protocol and diminishes the risk of the private key becoming abused by foreign parties. Use this property to provide the pre-shared key identifier, and use [external_crypto_key_secret](#external_crypto_key_secret-property) to pass the key itself. The same KeyID/KeySecret pair should be used on the DCAuth side for the signing requests to be accepted. Note: The KeyID/KeySecret scheme is very similar to the AuthKey scheme used in various Cloud service providers to authenticate users. Example: ```text signer.ExternalCrypto.KeyID = "MainSigningKey"; signer.ExternalCrypto.KeySecret = "abcdef0123456789"; ``` # external_crypto_key_secret property The pre-shared key used for DC request authentication. ## Syntax ```text def get_external_crypto_key_secret() -> str: ... def set_external_crypto_key_secret(value: str) -> None: ... external_crypto_key_secret = property(get_external_crypto_key_secret, set_external_crypto_key_secret) ``` ## Default Value "" ## Remarks The pre-shared key used for DC request authentication. This key must be set and match the key used by the DCAuth counterpart for the scheme to work. Read more about configuring authentication in the [external_crypto_key_id](#external_crypto_key_id-property) topic. # external_crypto_method property Specifies the asynchronous signing method. ## Syntax ```text def get_external_crypto_method() -> int: ... def set_external_crypto_method(value: int) -> None: ... external_crypto_method = property(get_external_crypto_method, set_external_crypto_method) ``` ## Possible Values ```text 0 # PKCS11 # PKCS7 ``` ## Default Value 0 ## Remarks Specifies the asynchronous signing method. This is typically defined by the DC server capabilities and setup. Available options: | | | | --- | --- | | asmdPKCS1 | 0 | | asmdPKCS7 | 1 | # external_crypto_mode property Specifies the external cryptography mode. ## Syntax ```text def get_external_crypto_mode() -> int: ... def set_external_crypto_mode(value: int) -> None: ... external_crypto_mode = property(get_external_crypto_mode, set_external_crypto_mode) ``` ## Possible Values ```text 0 # Default1 # Disabled2 # Generic3 # DCAuth4 # DCAuthJSON ``` ## Default Value 0 ## Remarks Specifies the external cryptography mode. Available options: | | | | --- | --- | | ecmDefault | The default value (0) | | ecmDisabled | Do not use DC or external signing (1) | | ecmGeneric | Generic external signing with the OnExternalSign event (2) | | ecmDCAuth | DCAuth signing (3) | | ecmDCAuthJSON | DCAuth signing in JSON format (4) | # external_crypto_public_key_algorithm property Provide the public key algorithm here if the certificate is not available on the pre-signing stage. ## Syntax ```text def get_external_crypto_public_key_algorithm() -> str: ... def set_external_crypto_public_key_algorithm(value: str) -> None: ... external_crypto_public_key_algorithm = property(get_external_crypto_public_key_algorithm, set_external_crypto_public_key_algorithm) ``` ## Default Value "" ## Remarks Provide the public key algorithm here if the certificate is not available on the pre-signing stage. | | | | | --- | --- | --- | | SB_CERT_ALGORITHM_ID_RSA_ENCRYPTION | rsaEncryption | | | SB_CERT_ALGORITHM_MD2_RSA_ENCRYPTION | md2withRSAEncryption | | | SB_CERT_ALGORITHM_MD5_RSA_ENCRYPTION | md5withRSAEncryption | | | SB_CERT_ALGORITHM_SHA1_RSA_ENCRYPTION | sha1withRSAEncryption | | | SB_CERT_ALGORITHM_ID_DSA | id-dsa | | | SB_CERT_ALGORITHM_ID_DSA_SHA1 | id-dsa-with-sha1 | | | SB_CERT_ALGORITHM_DH_PUBLIC | dhpublicnumber | | | SB_CERT_ALGORITHM_SHA224_RSA_ENCRYPTION | sha224WithRSAEncryption | | | SB_CERT_ALGORITHM_SHA256_RSA_ENCRYPTION | sha256WithRSAEncryption | | | SB_CERT_ALGORITHM_SHA384_RSA_ENCRYPTION | sha384WithRSAEncryption | | | SB_CERT_ALGORITHM_SHA512_RSA_ENCRYPTION | sha512WithRSAEncryption | | | SB_CERT_ALGORITHM_ID_RSAPSS | id-RSASSA-PSS | | | SB_CERT_ALGORITHM_ID_RSAOAEP | id-RSAES-OAEP | | | SB_CERT_ALGORITHM_RSASIGNATURE_RIPEMD160 | ripemd160withRSA | | | SB_CERT_ALGORITHM_ID_ELGAMAL | elGamal | | | SB_CERT_ALGORITHM_SHA1_ECDSA | ecdsa-with-SHA1 | | | SB_CERT_ALGORITHM_RECOMMENDED_ECDSA | ecdsa-recommended | | | SB_CERT_ALGORITHM_SHA224_ECDSA | ecdsa-with-SHA224 | | | SB_CERT_ALGORITHM_SHA256_ECDSA | ecdsa-with-SHA256 | | | SB_CERT_ALGORITHM_SHA384_ECDSA | ecdsa-with-SHA384 | | | SB_CERT_ALGORITHM_SHA512_ECDSA | ecdsa-with-SHA512 | | | SB_CERT_ALGORITHM_EC | id-ecPublicKey | | | SB_CERT_ALGORITHM_SPECIFIED_ECDSA | ecdsa-specified | | | SB_CERT_ALGORITHM_GOST_R3410_1994 | id-GostR3410-94 | | | SB_CERT_ALGORITHM_GOST_R3410_2001 | id-GostR3410-2001 | | | SB_CERT_ALGORITHM_GOST_R3411_WITH_R3410_1994 | id-GostR3411-94-with-GostR3410-94 | | | SB_CERT_ALGORITHM_GOST_R3411_WITH_R3410_2001 | id-GostR3411-94-with-GostR3410-2001 | | | SB_CERT_ALGORITHM_SHA1_ECDSA_PLAIN | ecdsa-plain-SHA1 | | | SB_CERT_ALGORITHM_SHA224_ECDSA_PLAIN | ecdsa-plain-SHA224 | | | SB_CERT_ALGORITHM_SHA256_ECDSA_PLAIN | ecdsa-plain-SHA256 | | | SB_CERT_ALGORITHM_SHA384_ECDSA_PLAIN | ecdsa-plain-SHA384 | | | SB_CERT_ALGORITHM_SHA512_ECDSA_PLAIN | ecdsa-plain-SHA512 | | | SB_CERT_ALGORITHM_RIPEMD160_ECDSA_PLAIN | ecdsa-plain-RIPEMD160 | | | SB_CERT_ALGORITHM_WHIRLPOOL_RSA_ENCRYPTION | whirlpoolWithRSAEncryption | | | SB_CERT_ALGORITHM_ID_DSA_SHA224 | id-dsa-with-sha224 | | | SB_CERT_ALGORITHM_ID_DSA_SHA256 | id-dsa-with-sha256 | | | SB_CERT_ALGORITHM_SHA3_224_RSA_ENCRYPTION | id-rsassa-pkcs1-v1_5-with-sha3-224 | | | SB_CERT_ALGORITHM_SHA3_256_RSA_ENCRYPTION | id-rsassa-pkcs1-v1_5-with-sha3-256 | | | SB_CERT_ALGORITHM_SHA3_384_RSA_ENCRYPTION | id-rsassa-pkcs1-v1_5-with-sha3-384 | | | SB_CERT_ALGORITHM_SHA3_512_RSA_ENCRYPTION | id-rsassa-pkcs1-v1_5-with-sha3-512 | | | SB_CERT_ALGORITHM_SHA3_224_ECDSA | id-ecdsa-with-sha3-224 | | | SB_CERT_ALGORITHM_SHA3_256_ECDSA | id-ecdsa-with-sha3-256 | | | SB_CERT_ALGORITHM_SHA3_384_ECDSA | id-ecdsa-with-sha3-384 | | | SB_CERT_ALGORITHM_SHA3_512_ECDSA | id-ecdsa-with-sha3-512 | | | SB_CERT_ALGORITHM_SHA3_224_ECDSA_PLAIN | id-ecdsa-plain-with-sha3-224 | | | SB_CERT_ALGORITHM_SHA3_256_ECDSA_PLAIN | id-ecdsa-plain-with-sha3-256 | | | SB_CERT_ALGORITHM_SHA3_384_ECDSA_PLAIN | id-ecdsa-plain-with-sha3-384 | | | SB_CERT_ALGORITHM_SHA3_512_ECDSA_PLAIN | id-ecdsa-plain-with-sha3-512 | | | SB_CERT_ALGORITHM_ID_DSA_SHA3_224 | id-dsa-with-sha3-224 | | | SB_CERT_ALGORITHM_ID_DSA_SHA3_256 | id-dsa-with-sha3-256 | | | SB_CERT_ALGORITHM_BLAKE2S_128_RSA_ENCRYPTION | id-rsassa-pkcs1-v1_5-with-blake2s128 | | | SB_CERT_ALGORITHM_BLAKE2S_160_RSA_ENCRYPTION | id-rsassa-pkcs1-v1_5-with-blake2s160 | | | SB_CERT_ALGORITHM_BLAKE2S_224_RSA_ENCRYPTION | id-rsassa-pkcs1-v1_5-with-blake2s224 | | | SB_CERT_ALGORITHM_BLAKE2S_256_RSA_ENCRYPTION | id-rsassa-pkcs1-v1_5-with-blake2s256 | | | SB_CERT_ALGORITHM_BLAKE2B_160_RSA_ENCRYPTION | id-rsassa-pkcs1-v1_5-with-blake2b160 | | | SB_CERT_ALGORITHM_BLAKE2B_256_RSA_ENCRYPTION | id-rsassa-pkcs1-v1_5-with-blake2b256 | | | SB_CERT_ALGORITHM_BLAKE2B_384_RSA_ENCRYPTION | id-rsassa-pkcs1-v1_5-with-blake2b384 | | | SB_CERT_ALGORITHM_BLAKE2B_512_RSA_ENCRYPTION | id-rsassa-pkcs1-v1_5-with-blake2b512 | | | SB_CERT_ALGORITHM_BLAKE2S_128_ECDSA | id-ecdsa-with-blake2s128 | | | SB_CERT_ALGORITHM_BLAKE2S_160_ECDSA | id-ecdsa-with-blake2s160 | | | SB_CERT_ALGORITHM_BLAKE2S_224_ECDSA | id-ecdsa-with-blake2s224 | | | SB_CERT_ALGORITHM_BLAKE2S_256_ECDSA | id-ecdsa-with-blake2s256 | | | SB_CERT_ALGORITHM_BLAKE2B_160_ECDSA | id-ecdsa-with-blake2b160 | | | SB_CERT_ALGORITHM_BLAKE2B_256_ECDSA | id-ecdsa-with-blake2b256 | | | SB_CERT_ALGORITHM_BLAKE2B_384_ECDSA | id-ecdsa-with-blake2b384 | | | SB_CERT_ALGORITHM_BLAKE2B_512_ECDSA | id-ecdsa-with-blake2b512 | | | SB_CERT_ALGORITHM_BLAKE2S_128_ECDSA_PLAIN | id-ecdsa-plain-with-blake2s128 | | | SB_CERT_ALGORITHM_BLAKE2S_160_ECDSA_PLAIN | id-ecdsa-plain-with-blake2s160 | | | SB_CERT_ALGORITHM_BLAKE2S_224_ECDSA_PLAIN | id-ecdsa-plain-with-blake2s224 | | | SB_CERT_ALGORITHM_BLAKE2S_256_ECDSA_PLAIN | id-ecdsa-plain-with-blake2s256 | | | SB_CERT_ALGORITHM_BLAKE2B_160_ECDSA_PLAIN | id-ecdsa-plain-with-blake2b160 | | | SB_CERT_ALGORITHM_BLAKE2B_256_ECDSA_PLAIN | id-ecdsa-plain-with-blake2b256 | | | SB_CERT_ALGORITHM_BLAKE2B_384_ECDSA_PLAIN | id-ecdsa-plain-with-blake2b384 | | | SB_CERT_ALGORITHM_BLAKE2B_512_ECDSA_PLAIN | id-ecdsa-plain-with-blake2b512 | | | SB_CERT_ALGORITHM_ID_DSA_BLAKE2S_224 | id-dsa-with-blake2s224 | | | SB_CERT_ALGORITHM_ID_DSA_BLAKE2S_256 | id-dsa-with-blake2s256 | | | SB_CERT_ALGORITHM_EDDSA_ED25519 | id-Ed25519 | | | SB_CERT_ALGORITHM_EDDSA_ED448 | id-Ed448 | | | SB_CERT_ALGORITHM_EDDSA_ED25519_PH | id-Ed25519ph | | | SB_CERT_ALGORITHM_EDDSA_ED448_PH | id-Ed448ph | | | SB_CERT_ALGORITHM_EDDSA | id-EdDSA | | | SB_CERT_ALGORITHM_EDDSA_SIGNATURE | id-EdDSA-sig | | | SB_CERT_ALGORITHM_MLDSA_44 | id-ml-dsa-44 | | | SB_CERT_ALGORITHM_MLDSA_65 | id-ml-dsa-65 | | | SB_CERT_ALGORITHM_MLDSA_87 | id-ml-dsa-87 | | | SB_CERT_ALGORITHM_HASH_MLDSA_44_SHA512 | id-hash-ml-dsa-44-with-sha512 | | | SB_CERT_ALGORITHM_HASH_MLDSA_65_SHA512 | id-hash-ml-dsa-65-with-sha512 | | | SB_CERT_ALGORITHM_HASH_MLDSA_87_SHA512 | id-hash-ml-dsa-87-with-sha512 | | | SB_CERT_ALGORITHM_MLKEM_512 | id-ml-kem-512 | | | SB_CERT_ALGORITHM_MLKEM_768 | id-ml-kem-768 | | | SB_CERT_ALGORITHM_MLKEM_1024 | id-ml-kem-1024 | | # fips_mode property Reserved. ## Syntax ```text def get_fips_mode() -> bool: ... def set_fips_mode(value: bool) -> None: ... fips_mode = property(get_fips_mode, set_fips_mode) ``` ## Default Value FALSE ## Remarks This property is reserved for future use. # author property The number of records in the FromAddr arrays. ## Syntax ```text def get_author() -> int: ... def set_author(value: int) -> None: ... author = property(get_author, set_author) ``` ## Default Value 0 ## Remarks This property controls the size of the following arrays: - [from_addr_address](#author-property-1) - [from_addr_display_name](#author-property-2) - [from_addr_group_name](#author-property-3) The array indices start at *0* and end at *from_addr_count - 1*. # author property Contains the e-mail address in the form of john@doe. ## Syntax ```text def get_author(from_addr_index: int) -> str: ... def set_author(from_addr_index: int, value: str) -> None: ... ``` ## Default Value "" ## Remarks Contains the e-mail address in the form of john@doe.com. The *from_addr_index* parameter specifies the index of the item in the array. The size of the array is controlled by the [from_addr_count](#author-property) property. # author property Contains the friendly name of the user of this address, such as John Doe. ## Syntax ```text def get_author(from_addr_index: int) -> str: ... def set_author(from_addr_index: int, value: str) -> None: ... ``` ## Default Value "" ## Remarks Contains the friendly name of the user of this address, such as John Doe. The *from_addr_index* parameter specifies the index of the item in the array. The size of the array is controlled by the [from_addr_count](#author-property) property. # author property The name of the group this address belongs to. ## Syntax ```text def get_author(from_addr_index: int) -> str: ... def set_author(from_addr_index: int, value: str) -> None: ... ``` ## Default Value "" ## Remarks The name of the group this address belongs to. The *from_addr_index* parameter specifies the index of the item in the array. The size of the array is controlled by the [from_addr_count](#author-property) property. # header_encoding property The encoding to be applied to the message header. ## Syntax ```text def get_header_encoding() -> int: ... def set_header_encoding(value: int) -> None: ... header_encoding = property(get_header_encoding, set_header_encoding) ``` ## Possible Values ```text 0 # Auto1 # 8bit2 # Base643 # QuotedPrintable ``` ## Default Value 0 ## Remarks Use this property to specify the encoding to use with the message header. | | | | | --- | --- | --- | | meAuto | 0 | | | me8bit | 1 | | | meBase64 | 2 | | | meQuotedPrintable | 3 | | # header_field_count property The number of records in the HeaderField arrays. ## Syntax ```text def get_header_field_count() -> int: ... def set_header_field_count(value: int) -> None: ... header_field_count = property(get_header_field_count, set_header_field_count) ``` ## Default Value 0 ## Remarks This property controls the size of the following arrays: - [header_field_category](#header_field_category-property) - [header_field_format](#header_field_format-property) - [header_field_name](#header_field_name-property) - [header_field_value](#header_field_value-property) The array indices start at *0* and end at *header_field_count - 1*. # header_field_category property Specifies the string category of the contained value. ## Syntax ```text def get_header_field_category(header_field_index: int) -> str: ... def set_header_field_category(header_field_index: int, value: str) -> None: ... ``` ## Default Value "" ## Remarks Specifies the string category of the contained value. This property allows to check or set the category (or type) associated with the contained value. Depending on the format used to load or save the string, the category parameter may or may not be used. For example, for ASN.1 property lists the category contains the ASN.1 tag of the contained data (OCTETSTRING, UTF8STRING, INTEGER, ...). For basic (name, value) pairs, such as HTTP headers, the category parameter is not used. The *header_field_index* parameter specifies the index of the item in the array. The size of the array is controlled by the [header_field_count](#header_field_count-property) property. # header_field_format property Specifies the format (encoding) of the value contained in the Value property. ## Syntax ```text def get_header_field_format(header_field_index: int) -> int: ... def set_header_field_format(header_field_index: int, value: int) -> None: ... ``` ## Default Value 0 ## Remarks Specifies the format (encoding) of the value contained in the [header_field_value](#header_field_value-property) property. Use this property to check or set the format of the contained value. Remember to provide the actual value in the appropriate format that matches this setting: ```text utils.NameValuePairs[0].Name = "key"; utils.NameValuePairs[0].Format = svfBinary; utils.NameValuePairs[0].Name = "0a1b2c3d4e5f6071"; ``` The following formats are currently supported: | | | | | --- | --- | --- | | svfText | 0 | The property contains text | | svfBinary | 1 | The property contains binary data. The Value property contains a hex encoding of it. | The *header_field_index* parameter specifies the index of the item in the array. The size of the array is controlled by the [header_field_count](#header_field_count-property) property. # header_field_name property The name element in a (name, value) pair. ## Syntax ```text def get_header_field_name(header_field_index: int) -> str: ... def set_header_field_name(header_field_index: int, value: str) -> None: ... ``` ## Default Value "" ## Remarks The name element in a (name, value) pair. The *header_field_index* parameter specifies the index of the item in the array. The size of the array is controlled by the [header_field_count](#header_field_count-property) property. # header_field_value property The value element in a (name, value) pair. ## Syntax ```text def get_header_field_value(header_field_index: int) -> str: ... def set_header_field_value(header_field_index: int, value: str) -> None: ... ``` ## Default Value "" ## Remarks The value element in a (name, value) pair. The *header_field_index* parameter specifies the index of the item in the array. The size of the array is controlled by the [header_field_count](#header_field_count-property) property. # mailer property The name of the software used to compose and/or send the message. ## Syntax ```text def get_mailer() -> str: ... def set_mailer(value: str) -> None: ... mailer = property(get_mailer, set_mailer) ``` ## Default Value "" ## Remarks Use this property to specify the software that was used to compose and send this message. # msg_attachment_count property Returns the number of attachments in this message. ## Syntax ```text def get_msg_attachment_count() -> int: ... msg_attachment_count = property(get_msg_attachment_count, None) ``` ## Default Value 0 ## Remarks Returns the number of attachments in this message. This property is read-only. # msg_bcc property The contents of the BCC header property. ## Syntax ```text def get_msg_bcc() -> str: ... def set_msg_bcc(value: str) -> None: ... msg_bcc = property(get_msg_bcc, set_msg_bcc) ``` ## Default Value "" ## Remarks The contents of the BCC header field. The BCC header field contains the addresses of secondary recipients of the message whose addresses are not to be revealed to other recipients of the message. Mail servers remove the BCC header when processing the message and use its value for dispatching the message only. # msg_cc property The value of the CC header property. ## Syntax ```text def get_msg_cc() -> str: ... def set_msg_cc(value: str) -> None: ... msg_cc = property(get_msg_cc, set_msg_cc) ``` ## Default Value "" ## Remarks The value of the CC header field. The CC field contains the addresses of secondary recipients of the message. # msg_comments property Contains additional information about the message body. ## Syntax ```text def get_msg_comments() -> str: ... def set_msg_comments(value: str) -> None: ... msg_comments = property(get_msg_comments, set_msg_comments) ``` ## Default Value "" ## Remarks Contains additional information about the message body. # msg_date property The date and time when the message entered the mail delivery system. ## Syntax ```text def get_msg_date() -> str: ... def set_msg_date(value: str) -> None: ... msg_date = property(get_msg_date, set_msg_date) ``` ## Default Value "" ## Remarks The date and time when the message entered the mail delivery system. This field contains the date and time at which the creator of the message posted the message to the mail delivery system. The date is returned and accepted in UTC time zone. # msg_delivery_receipt property Enables delivery notification. ## Syntax ```text def get_msg_delivery_receipt() -> bool: ... def set_msg_delivery_receipt(value: bool) -> None: ... msg_delivery_receipt = property(get_msg_delivery_receipt, set_msg_delivery_receipt) ``` ## Default Value FALSE ## Remarks Enables delivery notification. # msg_from property Contains the value of the From header property. ## Syntax ```text def get_msg_from() -> str: ... def set_msg_from(value: str) -> None: ... msg_from = property(get_msg_from, set_msg_from) ``` ## Default Value "" ## Remarks Contains the value of the From header field. This field contains the address(es) of the message author(s). If the actual sender is not the author of the message, use [msg_sender](#msg_sender-property) to specify the sender separately. # msg_handle property Allows to get or set a 'handle', a unique identifier of the underlying property object. ## Syntax ```text def get_msg_handle() -> int: ... def set_msg_handle(value: int) -> None: ... msg_handle = property(get_msg_handle, set_msg_handle) ``` ## Default Value 0 ## Remarks Allows to get or set a 'handle', a unique identifier of the underlying property object. Use this property to assign objects of the same type in a quicker manner, without copying them fieldwise. When you pass a handle of one object to another, the source object is copied to the destination rather than assigned. It is safe to get rid of the original object after such operation. ```text pdfSigner.setSigningCertHandle(certMgr.getCertHandle()); ``` # msg_html_text property The HTML version of the message. ## Syntax ```text def get_msg_html_text() -> str: ... def set_msg_html_text(value: str) -> None: ... msg_html_text = property(get_msg_html_text, set_msg_html_text) ``` ## Default Value "" ## Remarks The HTML version of the message. # msg_id property The contents of the Message-ID header property. ## Syntax ```text def get_msg_id() -> str: ... def set_msg_id(value: str) -> None: ... msg_id = property(get_msg_id, set_msg_id) ``` ## Default Value "" ## Remarks The contents of the Message-ID header field. This field contains a unique identifier that refers to a particular version of this message. # msg_in_reply_to property The value of the In-Reply-To header property. ## Syntax ```text def get_msg_in_reply_to() -> str: ... def set_msg_in_reply_to(value: str) -> None: ... msg_in_reply_to = property(get_msg_in_reply_to, set_msg_in_reply_to) ``` ## Default Value "" ## Remarks The value of the In-Reply-To header field. A reply message should have the "In-Reply-To:" header field which may be used to identify the message (or messages) to which the new message is a reply. # msg_keywords property The value of the Keywords header property. ## Syntax ```text def get_msg_keywords() -> str: ... def set_msg_keywords(value: str) -> None: ... msg_keywords = property(get_msg_keywords, set_msg_keywords) ``` ## Default Value "" ## Remarks The value of the Keywords header field. This field can be used to add some important words and phrases that might be useful for the recipient. # msg_mailer property The name of the software that was used to send the message. ## Syntax ```text def get_msg_mailer() -> str: ... msg_mailer = property(get_msg_mailer, None) ``` ## Default Value "" ## Remarks The name of the software that was used to send the message. This property is read-only. # msg_plain_text property The plain text version of the message. ## Syntax ```text def get_msg_plain_text() -> str: ... def set_msg_plain_text(value: str) -> None: ... msg_plain_text = property(get_msg_plain_text, set_msg_plain_text) ``` ## Default Value "" ## Remarks The plain text version of the message. # msg_priority property Specifies the message priority. ## Syntax ```text def get_msg_priority() -> int: ... def set_msg_priority(value: int) -> None: ... msg_priority = property(get_msg_priority, set_msg_priority) ``` ## Possible Values ```text 0 # Lowest1 # Low2 # Normal3 # High4 # Highest ``` ## Default Value 2 ## Remarks Specifies the message priority. Available options: | | | | --- | --- | | mpLowest | 0 | | mpLow | 1 | | mpNormal | 2 | | mpHigh | 3 | | mpHighest | 4 | # msg_read_receipt property Enables a read notification. ## Syntax ```text def get_msg_read_receipt() -> bool: ... def set_msg_read_receipt(value: bool) -> None: ... msg_read_receipt = property(get_msg_read_receipt, set_msg_read_receipt) ``` ## Default Value FALSE ## Remarks Enables a read notification. # msg_references property The value of the References header property. ## Syntax ```text def get_msg_references() -> str: ... def set_msg_references(value: str) -> None: ... msg_references = property(get_msg_references, set_msg_references) ``` ## Default Value "" ## Remarks The value of the References header field. A reply message should include a "References:" header field which may be used to identify the "conversation thread". If the initial message is a reply itself, the References of the reply contain combined content of its "References:", "InReplyTo:" and "MessageID:" fields, subject to their presence in the original message. # msg_reply_to property The value of the Reply-To header property. ## Syntax ```text def get_msg_reply_to() -> str: ... def set_msg_reply_to(value: str) -> None: ... msg_reply_to = property(get_msg_reply_to, set_msg_reply_to) ``` ## Default Value "" ## Remarks The value of the Reply-To header field. This field contains the addresses to which the replies to this message should be sent. This field is optional. If not specified, the replies must be sent to the addresses specified in the [msg_from](#msg_from-property) field. # msg_return_path property The value of the Return-Path header property. ## Syntax ```text def get_msg_return_path() -> str: ... def set_msg_return_path(value: str) -> None: ... msg_return_path = property(get_msg_return_path, set_msg_return_path) ``` ## Default Value "" ## Remarks The value of the Return-Path header field. This field contains the address to which this message shall be returned in case of unsuccessful delivery. # msg_sender property The value of the Sender header property. ## Syntax ```text def get_msg_sender() -> str: ... def set_msg_sender(value: str) -> None: ... msg_sender = property(get_msg_sender, set_msg_sender) ``` ## Default Value "" ## Remarks The value of the Sender header field. This field specifies the mailbox of the agent responsible for the actual transmission of this message. If the originator of the message can be indicated by a single mailbox and both the author and the transmitter are identical, the "Sender:" field is deemed excessive and should not be used. # msg_send_to property The value of the To header property. ## Syntax ```text def get_msg_send_to() -> str: ... def set_msg_send_to(value: str) -> None: ... msg_send_to = property(get_msg_send_to, set_msg_send_to) ``` ## Default Value "" ## Remarks The value of the To header field. This field specifies the address(es) of the primary recipient(s) of the message. # msg_subject property Contains the subject property of this message. ## Syntax ```text def get_msg_subject() -> str: ... def set_msg_subject(value: str) -> None: ... msg_subject = property(get_msg_subject, set_msg_subject) ``` ## Default Value "" ## Remarks Contains the subject field of this message. # profile property Specifies a pre-defined profile to apply when creating the signature. ## Syntax ```text def get_profile() -> str: ... def set_profile(value: str) -> None: ... profile = property(get_profile, set_profile) ``` ## Default Value "" ## Remarks Advanced signatures come in many variants, which are often defined by parties that needs to process them or by local standards. SecureBlackbox profiles are sets of pre-defined configurations which correspond to particular signature variants. By specifying a profile, you are pre-configuring the component to make it produce the signature that matches the configuration corresponding to that profile. # reply_to_addr_count property The number of records in the ReplyToAddr arrays. ## Syntax ```text def get_reply_to_addr_count() -> int: ... def set_reply_to_addr_count(value: int) -> None: ... reply_to_addr_count = property(get_reply_to_addr_count, set_reply_to_addr_count) ``` ## Default Value 0 ## Remarks This property controls the size of the following arrays: - [reply_to_addr_address](#reply_to_addr_address-property) - [reply_to_addr_display_name](#reply_to_addr_display_name-property) - [reply_to_addr_group_name](#reply_to_addr_group_name-property) The array indices start at *0* and end at *reply_to_addr_count - 1*. # reply_to_addr_address property Contains the e-mail address in the form of john@doe. ## Syntax ```text def get_reply_to_addr_address(reply_to_addr_index: int) -> str: ... def set_reply_to_addr_address(reply_to_addr_index: int, value: str) -> None: ... ``` ## Default Value "" ## Remarks Contains the e-mail address in the form of john@doe.com. The *reply_to_addr_index* parameter specifies the index of the item in the array. The size of the array is controlled by the [reply_to_addr_count](#reply_to_addr_count-property) property. # reply_to_addr_display_name property Contains the friendly name of the user of this address, such as John Doe. ## Syntax ```text def get_reply_to_addr_display_name(reply_to_addr_index: int) -> str: ... def set_reply_to_addr_display_name(reply_to_addr_index: int, value: str) -> None: ... ``` ## Default Value "" ## Remarks Contains the friendly name of the user of this address, such as John Doe. The *reply_to_addr_index* parameter specifies the index of the item in the array. The size of the array is controlled by the [reply_to_addr_count](#reply_to_addr_count-property) property. # reply_to_addr_group_name property The name of the group this address belongs to. ## Syntax ```text def get_reply_to_addr_group_name(reply_to_addr_index: int) -> str: ... def set_reply_to_addr_group_name(reply_to_addr_index: int, value: str) -> None: ... ``` ## Default Value "" ## Remarks The name of the group this address belongs to. The *reply_to_addr_index* parameter specifies the index of the item in the array. The size of the array is controlled by the [reply_to_addr_count](#reply_to_addr_count-property) property. # sec_settings_claimed_signing_time property Specifies the signing time from the signer's computer. ## Syntax ```text def get_sec_settings_claimed_signing_time() -> str: ... def set_sec_settings_claimed_signing_time(value: str) -> None: ... sec_settings_claimed_signing_time = property(get_sec_settings_claimed_signing_time, set_sec_settings_claimed_signing_time) ``` ## Default Value "" ## Remarks Specifies the signing time from the signer's computer. Use this property to specify the signature production time. The claimed time is not covered by the signature, may be forfeited or wrong, and as such is usually taken by verifiers for informational purposes only. # sec_settings_encrypt property Whether to encrypt the message. ## Syntax ```text def get_sec_settings_encrypt() -> bool: ... def set_sec_settings_encrypt(value: bool) -> None: ... sec_settings_encrypt = property(get_sec_settings_encrypt, set_sec_settings_encrypt) ``` ## Default Value FALSE ## Remarks Whether to encrypt the message. # sec_settings_encryption_algorithm property Specifies the encryption algorithm to be used. ## Syntax ```text def get_sec_settings_encryption_algorithm() -> str: ... def set_sec_settings_encryption_algorithm(value: str) -> None: ... sec_settings_encryption_algorithm = property(get_sec_settings_encryption_algorithm, set_sec_settings_encryption_algorithm) ``` ## Default Value "AES128" ## Remarks Specifies the encryption algorithm to be used. | | | | | --- | --- | --- | | SB_SYMMETRIC_ALGORITHM_RC4 | RC4 | | | SB_SYMMETRIC_ALGORITHM_DES | DES | | | SB_SYMMETRIC_ALGORITHM_3DES | 3DES | | | SB_SYMMETRIC_ALGORITHM_RC2 | RC2 | | | SB_SYMMETRIC_ALGORITHM_AES128 | AES128 | | | SB_SYMMETRIC_ALGORITHM_AES192 | AES192 | | | SB_SYMMETRIC_ALGORITHM_AES256 | AES256 | | | SB_SYMMETRIC_ALGORITHM_AES128_GCM | AES128-GCM | | | SB_SYMMETRIC_ALGORITHM_AES192_GCM | AES192-GCM | | | SB_SYMMETRIC_ALGORITHM_AES256_GCM | AES256-GCM | | # sec_settings_hash_algorithm property Specifies the hash algorithm to be used. ## Syntax ```text def get_sec_settings_hash_algorithm() -> str: ... def set_sec_settings_hash_algorithm(value: str) -> None: ... sec_settings_hash_algorithm = property(get_sec_settings_hash_algorithm, set_sec_settings_hash_algorithm) ``` ## Default Value "SHA256" ## Remarks Specifies the hash algorithm to be used. | | | | | --- | --- | --- | | SB_HASH_ALGORITHM_MD5 | MD5 | | | SB_HASH_ALGORITHM_SHA1 | SHA1 | | | SB_HASH_ALGORITHM_SHA256 | SHA256 | | | SB_HASH_ALGORITHM_SHA384 | SHA384 | | | SB_HASH_ALGORITHM_SHA512 | SHA512 | | | SB_HASH_ALGORITHM_SHA3_256 | SHA3_256 | | | SB_HASH_ALGORITHM_SHA3_384 | SHA3_384 | | | SB_HASH_ALGORITHM_SHA3_512 | SHA3_512 | | | SB_HASH_ALGORITHM_BLAKE2S_128 | BLAKE2S_128 | | | SB_HASH_ALGORITHM_BLAKE2S_160 | BLAKE2S_160 | | | SB_HASH_ALGORITHM_BLAKE2S_224 | BLAKE2S_224 | | | SB_HASH_ALGORITHM_BLAKE2S_256 | BLAKE2S_256 | | | SB_HASH_ALGORITHM_BLAKE2B_160 | BLAKE2B_160 | | | SB_HASH_ALGORITHM_BLAKE2B_256 | BLAKE2B_256 | | | SB_HASH_ALGORITHM_BLAKE2B_384 | BLAKE2B_384 | | | SB_HASH_ALGORITHM_BLAKE2B_512 | BLAKE2B_512 | | # sec_settings_sign property Whether to sign the message. ## Syntax ```text def get_sec_settings_sign() -> bool: ... def set_sec_settings_sign(value: bool) -> None: ... sec_settings_sign = property(get_sec_settings_sign, set_sec_settings_sign) ``` ## Default Value FALSE ## Remarks Whether to sign the message. # sec_settings_signature_format property Specifies the signature format to use for the signed message. ## Syntax ```text def get_sec_settings_signature_format() -> int: ... def set_sec_settings_signature_format(value: int) -> None: ... sec_settings_signature_format = property(get_sec_settings_signature_format, set_sec_settings_signature_format) ``` ## Possible Values ```text 0 # MultipartSigned1 # SignedData ``` ## Default Value 0 ## Remarks Specifies the signature format to use for the signed message. Available options: | | | | | --- | --- | --- | | msMultipartSigned | 0 | | | msSignedData | 1 | | # sec_settings_sign_before_encrypt property Specifies the order of encryption and signing operations. ## Syntax ```text def get_sec_settings_sign_before_encrypt() -> bool: ... def set_sec_settings_sign_before_encrypt(value: bool) -> None: ... sec_settings_sign_before_encrypt = property(get_sec_settings_sign_before_encrypt, set_sec_settings_sign_before_encrypt) ``` ## Default Value TRUE ## Remarks Specifies the order of encryption and signing operations. # sec_settings_sign_message_header property Specifies whether to include the message header in the signature calculation. ## Syntax ```text def get_sec_settings_sign_message_header() -> bool: ... def set_sec_settings_sign_message_header(value: bool) -> None: ... sec_settings_sign_message_header = property(get_sec_settings_sign_message_header, set_sec_settings_sign_message_header) ``` ## Default Value FALSE ## Remarks Specifies whether to include the message header in the signature calculation. # sender_addr_address property Contains the e-mail address in the form of john@doe. ## Syntax ```text def get_sender_addr_address() -> str: ... def set_sender_addr_address(value: str) -> None: ... sender_addr_address = property(get_sender_addr_address, set_sender_addr_address) ``` ## Default Value "" ## Remarks Contains the e-mail address in the form of john@doe.com. # sender_addr_display_name property Contains the friendly name of the user of this address, such as John Doe. ## Syntax ```text def get_sender_addr_display_name() -> str: ... def set_sender_addr_display_name(value: str) -> None: ... sender_addr_display_name = property(get_sender_addr_display_name, set_sender_addr_display_name) ``` ## Default Value "" ## Remarks Contains the friendly name of the user of this address, such as John Doe. # sender_addr_group_name property The name of the group this address belongs to. ## Syntax ```text def get_sender_addr_group_name() -> str: ... def set_sender_addr_group_name(value: str) -> None: ... sender_addr_group_name = property(get_sender_addr_group_name, set_sender_addr_group_name) ``` ## Default Value "" ## Remarks The name of the group this address belongs to. # send_to_addr_count property The number of records in the SendToAddr arrays. ## Syntax ```text def get_send_to_addr_count() -> int: ... def set_send_to_addr_count(value: int) -> None: ... send_to_addr_count = property(get_send_to_addr_count, set_send_to_addr_count) ``` ## Default Value 0 ## Remarks This property controls the size of the following arrays: - [send_to_addr_address](#send_to_addr_address-property) - [send_to_addr_display_name](#send_to_addr_display_name-property) - [send_to_addr_group_name](#send_to_addr_group_name-property) The array indices start at *0* and end at *send_to_addr_count - 1*. # send_to_addr_address property Contains the e-mail address in the form of john@doe. ## Syntax ```text def get_send_to_addr_address(send_to_addr_index: int) -> str: ... def set_send_to_addr_address(send_to_addr_index: int, value: str) -> None: ... ``` ## Default Value "" ## Remarks Contains the e-mail address in the form of john@doe.com. The *send_to_addr_index* parameter specifies the index of the item in the array. The size of the array is controlled by the [send_to_addr_count](#send_to_addr_count-property) property. # send_to_addr_display_name property Contains the friendly name of the user of this address, such as John Doe. ## Syntax ```text def get_send_to_addr_display_name(send_to_addr_index: int) -> str: ... def set_send_to_addr_display_name(send_to_addr_index: int, value: str) -> None: ... ``` ## Default Value "" ## Remarks Contains the friendly name of the user of this address, such as John Doe. The *send_to_addr_index* parameter specifies the index of the item in the array. The size of the array is controlled by the [send_to_addr_count](#send_to_addr_count-property) property. # send_to_addr_group_name property The name of the group this address belongs to. ## Syntax ```text def get_send_to_addr_group_name(send_to_addr_index: int) -> str: ... def set_send_to_addr_group_name(send_to_addr_index: int, value: str) -> None: ... ``` ## Default Value "" ## Remarks The name of the group this address belongs to. The *send_to_addr_index* parameter specifies the index of the item in the array. The size of the array is controlled by the [send_to_addr_count](#send_to_addr_count-property) property. # signing_cert_bytes property Returns the raw certificate data in DER format. ## Syntax ```text def get_signing_cert_bytes() -> bytes: ... signing_cert_bytes = property(get_signing_cert_bytes, None) ``` ## Remarks Returns the raw certificate data in DER format. This property is read-only. # signing_cert_handle property Allows to get or set a 'handle', a unique identifier of the underlying property object. ## Syntax ```text def get_signing_cert_handle() -> int: ... def set_signing_cert_handle(value: int) -> None: ... signing_cert_handle = property(get_signing_cert_handle, set_signing_cert_handle) ``` ## Default Value 0 ## Remarks Allows to get or set a 'handle', a unique identifier of the underlying property object. Use this property to assign objects of the same type in a quicker manner, without copying them fieldwise. When you pass a handle of one object to another, the source object is copied to the destination rather than assigned. It is safe to get rid of the original object after such operation. ```text pdfSigner.setSigningCertHandle(certMgr.getCertHandle()); ``` # signing_chain_count property The number of records in the SigningChain arrays. ## Syntax ```text def get_signing_chain_count() -> int: ... def set_signing_chain_count(value: int) -> None: ... signing_chain_count = property(get_signing_chain_count, set_signing_chain_count) ``` ## Default Value 0 ## Remarks This property controls the size of the following arrays: - [signing_chain_bytes](#signing_chain_bytes-property) - [signing_chain_handle](#signing_chain_handle-property) The array indices start at *0* and end at *signing_chain_count - 1*. # signing_chain_bytes property Returns the raw certificate data in DER format. ## Syntax ```text def get_signing_chain_bytes(signing_chain_index: int) -> bytes: ... ``` ## Remarks Returns the raw certificate data in DER format. The *signing_chain_index* parameter specifies the index of the item in the array. The size of the array is controlled by the [signing_chain_count](#signing_chain_count-property) property. This property is read-only. # signing_chain_handle property Allows to get or set a 'handle', a unique identifier of the underlying property object. ## Syntax ```text def get_signing_chain_handle(signing_chain_index: int) -> int: ... def set_signing_chain_handle(signing_chain_index: int, value: int) -> None: ... ``` ## Default Value 0 ## Remarks Allows to get or set a 'handle', a unique identifier of the underlying property object. Use this property to assign objects of the same type in a quicker manner, without copying them fieldwise. When you pass a handle of one object to another, the source object is copied to the destination rather than assigned. It is safe to get rid of the original object after such operation. ```text pdfSigner.setSigningCertHandle(certMgr.getCertHandle()); ``` The *signing_chain_index* parameter specifies the index of the item in the array. The size of the array is controlled by the [signing_chain_count](#signing_chain_count-property) property. # text_encoding property The encoding to be applied to the message. ## Syntax ```text def get_text_encoding() -> int: ... def set_text_encoding(value: int) -> None: ... text_encoding = property(get_text_encoding, set_text_encoding) ``` ## Possible Values ```text 0 # Auto1 # 8bit2 # Base643 # QuotedPrintable ``` ## Default Value 0 ## Remarks Use this property to specify the encoding to use for the content of the message. | | | | | --- | --- | --- | | meAuto | 0 | | | me8bit | 1 | | | meBase64 | 2 | | | meQuotedPrintable | 3 | | # attach_bytes method Creates an attachment from a memory buffer. ## Syntax ```text def attach_bytes(data: bytes) -> int: ... ``` ## Remarks Use this method to create an attachment from a memory buffer. Use attachments property to provide further attachment details. The method returns the index of the new attachment in the attachments list. # attach_file method Creates an attachment from a file. ## Syntax ```text def attach_file(file_name: str) -> int: ... ``` ## Remarks Use this method to create an attachment from a file. Use attachments property to provide further attachment details. The method returns the index of the new attachment in the attachments list. # attach_image method Creates an image attachment from a memory buffer. ## Syntax ```text def attach_image(id: str, data: bytes) -> int: ... ``` ## Remarks Use this method to create a picture attachment from a memory buffer. Use attachments property to provide further attachment details. The method returns the index of the new attachment in the attachments list. # config method Sets or retrieves a configuration setting. ## Syntax ```text def config(configuration_string: str) -> str: ... ``` ## Remarks config is a generic method available in every class. It is used to set and retrieve [configuration settings](#mailwriter-config-settings) for the class. These settings are similar in functionality to properties, but they are rarely used. In order to avoid "polluting" the property namespace of the class, access to these *internal properties* is provided through the config method. To set a configuration setting named *PROPERTY*, you must call *Config("PROPERTY=VALUE")*, where *VALUE* is the value of the setting expressed as a string. For boolean values, use the strings "True", "False", "0", "1", "Yes", or "No" (case does not matter). To read (query) the value of a [configuration setting](#mailwriter-config-settings), you must call *Config("PROPERTY")*. The value will be returned as a string. # create_new method Creates a template for a new message. ## Syntax ```text def create_new() -> None: ... ``` ## Remarks This method cleans up the current message and makes the component ready for new operation. Use this method to create a fresh email message for further editing and saving. # do_action method Performs an additional action. ## Syntax ```text def do_action(action_id: str, action_params: str) -> str: ... ``` ## Remarks do_action is a generic method available in every class. It is used to perform an additional action introduced after the product major release. The list of actions is not fixed, and may be flexibly extended over time. The unique identifier (case insensitive) of the action is provided in the *ActionID* parameter. *ActionParams* contains the value of a single parameter, or a list of multiple parameters for the action in the form of *PARAM1=VALUE1;PARAM2=VALUE2;...*. Common ActionIDs: | | | | | | --- | --- | --- | --- | | Action | Parameters | Returned value | Description | | ResetTrustedListCache | none | none | Clears the cached list of trusted lists. | | ResetCertificateCache | none | none | Clears the cached certificates. | | ResetCRLCache | none | none | Clears the cached CRLs. | | ResetOCSPResponseCache | none | none | Clears the cached OCSP responses. | # reset method Resets the class settings. ## Syntax ```text def reset() -> None: ... ``` ## Remarks reset is a generic method available in every class. # save_to_bytes method Serializes the message to a byte array. ## Syntax ```text def save_to_bytes() -> bytes: ... ``` ## Remarks Use this method to assemble the message and save it to a byte array. # save_to_file method Serializes the message to a file. ## Syntax ```text def save_to_file(file_name: str) -> None: ... ``` ## Remarks Use this method to assemble the message and save it to a file. # on_error event Reports information about errors during e-mail message assembling or saving. ## Syntax ```text class MailWriterErrorEventParams(object): @property def error_code() -> int: ... @property def description() -> str: ... # In class MailWriter: @property def on_error() -> Callable[[MailWriterErrorEventParams], None]: ... @on_error.setter def on_error(event_hook: Callable[[MailWriterErrorEventParams], None]) -> None: ... ``` ## Remarks The event is fired in case of exceptional conditions during message processing. *ErrorCode* contains an error code and *Description* contains a textual description of the error. # on_external_sign event Handles remote or external signing initiated by the SignExternal method or other source. ## Syntax ```text class MailWriterExternalSignEventParams(object): @property def operation_id() -> str: ... @property def hash_algorithm() -> str: ... @property def pars() -> str: ... @property def data() -> str: ... @property def signed_data() -> str: ... @signed_data.setter def signed_data(value) -> None: ... # In class MailWriter: @property def on_external_sign() -> Callable[[MailWriterExternalSignEventParams], None]: ... @on_external_sign.setter def on_external_sign(event_hook: Callable[[MailWriterExternalSignEventParams], None]) -> None: ... ``` ## Remarks Assign a handler to this event if you need to delegate a low-level signing operation to an external, remote, or custom signing engine. Depending on the settings, the handler will receive a hashed or unhashed value to be signed. The event handler must pass the value of *Data* to the signer, obtain the signature, and pass it back to the class via the *SignedData* parameter. *OperationId* provides a comment about the operation and its origin. It depends on the exact class being used, and may be empty. *HashAlgorithm* specifies the hash algorithm being used for the operation, and *Pars* contains algorithm-dependent parameters. The class uses base16 (hex) encoding for the *Data*, *SignedData*, and *Pars* parameters. If your signing engine uses a different input and output encoding, you may need to decode and/or encode the data before and/or after the signing. A sample MD5 hash encoded in base16: a0dee2a0382afbb09120ffa7ccd8a152 - lower case base16 A0DEE2A0382AFBB09120FFA7CCD8A152 - upper case base16 A sample event handler that uses the .NET RSACryptoServiceProvider class may look like the following: ```text signer.OnExternalSign += (s, e) => { var cert = new X509Certificate2("cert.pfx", "", X509KeyStorageFlags.Exportable); var key = (RSACryptoServiceProvider)cert.PrivateKey; var dataToSign = e.Data.FromBase16String(); var signedData = key.SignHash(dataToSign, "2.16.840.1.101.3.4.2.1"); e.SignedData = signedData.ToBase16String(); }; ``` # on_notification event This event notifies the application about an underlying control flow event. ## Syntax ```text class MailWriterNotificationEventParams(object): @property def event_id() -> str: ... @property def event_param() -> str: ... # In class MailWriter: @property def on_notification() -> Callable[[MailWriterNotificationEventParams], None]: ... @on_notification.setter def on_notification(event_hook: Callable[[MailWriterNotificationEventParams], None]) -> None: ... ``` ## Remarks The class fires this event to let the application know about some event, occurrence, or milestone in the class. For example, it may fire to report completion of the document processing. The list of events being reported is not fixed, and may be flexibly extended over time. The unique identifier of the event is provided in the *EventID* parameter. *EventParam* contains any parameters accompanying the occurrence. Depending on the type of the class, the exact action it is performing, or the document being processed, one or both may be omitted. # MailWriter Config Settings The class accepts one or more of the following *configuration settings*. Configuration settings are similar in functionality to properties, but they are rarely used. In order to avoid "polluting" the property namespace of the class, access to these *internal properties* is provided through the [config](#config-method) method. ### MailWriter Config Settings **BitsInKey**: Key length for the block cipher used for encryption. The value should be a multiple of 8. **IncludeSigningCertificate**: If true (by default), the signing certificate is included into the signature. Otherwise, it is included only if SigningChain is not empty. **TempPath**: Path for storing temporary files.This setting specifies an absolute path to the location on disk where temporary files are stored. This setting is supported only in the Java edition for all applicable signing components except [PDFSigner](PDFSigner.md#PDFSigner), where this limitation does not apply. ### Base Config Settings **ASN1UseGlobalTagCache**: Controls whether ASN.1 module should use a global object cache.This is a performance setting. It is unlikely that you will ever need to adjust it. **AssignSystemSmartCardPins**: Specifies whether CSP-level PINs should be assigned to CNG keys.This is a low-level tweak for certain cryptographic providers. It is unlikely that you will ever need to adjust it. **CheckKeyIntegrityBeforeUse**: Enables or disable private key integrity check before use.This global property enables or disables private key material check before each signing operation. This slows down performance a bit, but prevents a selection of attacks on RSA keys where keys with unknown origins are used. You can switch this property off to improve performance if your project only uses known, good private keys. **CookieCaching**: Specifies whether a cookie cache should be used for HTTP(S) transports.Set this property to enable or disable cookies caching for the class. Supported values are: | | | | | --- | --- | --- | | off | | No caching (default) | | local | | Local caching | | global | | Global caching | **Cookies**: Gets or sets local cookies for the class.Use this property to get cookies from the internal cookie storage of the class and/or restore them back between application sessions. **DefDeriveKeyIterations**: Specifies the default key derivation algorithm iteration count.This global property sets the default number of iterations for all supported key derivation algorithms. Note that you can provide the required number of iterations by using properties of the relevant key generation component; this global setting is used in scenarios where specific iteration count is not or cannot be provided. **DNSLocalSuffix**: The suffix to assign for TLD names.Use this global setting to adjust the default suffix to assign to top-level domain names. The default is *.local*. **EnableClientSideSSLFFDHE**: Enables or disables finite field DHE key exchange support in TLS clients.This global property enables or disables support for finite field DHE key exchange methods in TLS clients. FF DHE is a slower algorithm if compared to EC DHE; enabling it may result in slower connections. This setting only applies to sessions negotiated with TLS version 1.3. **EnableSSHMLKEM**: Enables support for ML-KEM/hybrid key exchange algorithms in SSH client and server components.Use this setting to enable hybrid key exchange algorithms in client and server SSH and SFTP components. This is a global setting that enables ML-KEM blanketly in all SSH-dependent components. **EnableTLSMLKEM**: Enables support for ML-KEM and hybrid groups in TLS client and server components.Use this setting to enable ML-KEM and hybrid key exchange groups in client and server TLS components. This is a global setting that enables ML-KEM blanketly in all TLS-dependent components. **GlobalCookies**: Gets or sets global cookies for all the HTTP transports.Use this property to get cookies from the GLOBAL cookie storage or restore them back between application sessions. These cookies will be used by all the classes that have its *CookieCaching* property set to "global". **HardwareCryptoUsePolicy**: The hardware crypto usage policy.This global setting controls the hardware cryptography usage policy. Supported Values: | | | | --- | --- | | auto | Use hardware cryptography if available; otherwise, fall back to software-based cryptography (default). | | enable | Always attempt to use hardware cryptography. If unavailable, exception will be thrown. | | disable | Do not use hardware cryptography. | **HttpUserAgent**: Specifies the user agent name to be used by all HTTP clients.This global setting defines the User-Agent field of the HTTP request provides information about the software that initiates the request. This value will be used by all the HTTP clients including the ones used internally in other classes. **HttpVersion**: The HTTP version to use in any inner HTTP client components created.Set this property to 1.0 or 1.1 to indicate the HTTP version that any internal HTTP clients should use. **IgnoreExpiredMSCTLSigningCert**: Whether to tolerate the expired Windows Update signing certificate.It is not uncommon for Microsoft Windows Update Certificate Trust List to be signed with an expired Microsoft certificate. Setting this global property to true makes SBB ignore the expired factor and take the Trust List into account. **ListDelimiter**: The delimiter character for multi-element lists.Allows to set the delimiter for any multi-entry values returned by the component as a string object, such as file lists. For most of the components, this property is set to a newline sequence. **LogDestination**: Specifies the debug log destination.Contains a comma-separated list of values that specifies where debug log should be dumped. Supported values are: | | | | | --- | --- | --- | | file | | File | | console | | Console | | systemlog | | System Log (supported for Android only) | | debugger | | Debugger (supported for VCL for Windows and .Net) | **LogDetails**: Specifies the debug log details to dump.Contains a comma-separated list of values that specifies which debug log details to dump. Supported values are: | | | | | --- | --- | --- | | time | | Current time | | level | | Level | | package | | Package name | | module | | Module name | | class | | Class name | | method | | Method name | | threadid | | Thread Id | | contenttype | | Content type | | content | | Content | | all | | All details | **LogFile**: Specifies the debug log filename.Use this property to provide a path to the log file. **LogFilters**: Specifies the debug log filters.Contains a comma-separated list of value pairs ("name:value") that describe filters. Supported filter names are: | | | | | --- | --- | --- | | exclude-package | | Exclude a package specified in the value | | exclude-module | | Exclude a module specified in the value | | exclude-class | | Exclude a class specified in the value | | exclude-method | | Exclude a method specified in the value | | include-package | | Include a package specified in the value | | include-module | | Include a module specified in the value | | include-class | | Include a class specified in the value | | include-method | | Include a method specified in the value | **LogFlushMode**: Specifies the log flush mode.Use this property to set the log flush mode. The following values are defined: | | | | | --- | --- | --- | | none | | No flush (caching only) | | immediate | | Immediate flush (real-time logging) | | maxcount | | Flush cached entries upon reaching LogMaxEventCount entries in the cache. | **LogLevel**: Specifies the debug log level.Use this property to provide the desired debug log level. Supported values are: | | | | | --- | --- | --- | | none | | None (by default) | | fatal | | Severe errors that cause premature termination. | | error | | Other runtime errors or unexpected conditions. | | warning | | Use of deprecated APIs, poor use of API, 'almost' errors, other runtime situations that are undesirable or unexpected, but not necessarily "wrong". | | info | | Interesting runtime events (startup/shutdown). | | debug | | Detailed information on flow of through the system. | | trace | | More detailed information. | **LogMaxEventCount**: Specifies the maximum number of events to cache before further action is taken.Use this property to specify the log event number threshold. This threshold may have different effects, depending on the rotation setting and/or the flush mode. The default value of this setting is 100. **LogRotationMode**: Specifies the log rotation mode.Use this property to set the log rotation mode. The following values are defined: | | | | | --- | --- | --- | | none | | No rotation | | deleteolder | | Delete older entries from the cache upon reaching LogMaxEventCount | | keepolder | | Keep older entries in the cache upon reaching LogMaxEventCount (newer entries are discarded) | **MaxASN1BufferLength**: Specifies the maximal allowed length for ASN.1 primitive tag data.This global property limits the maximal allowed length for ASN.1 tag data for non-content-carrying structures, such as certificates, CRLs, or timestamps. It does not affect structures that can carry content, such as CMS/CAdES messages. This is a security property aiming at preventing DoS attacks. **MaxASN1TreeDepth**: Specifies the maximal depth for processed ASN.1 trees.This global property limits the maximal depth of ASN.1 trees that the component can handle without throwing an error. This is a security property aiming at preventing DoS attacks. **OCSPHashAlgorithm**: Specifies the hash algorithm to be used to identify certificates in OCSP requests.This global setting defines the hash algorithm to use in OCSP requests during chain validation. Some OCSP responders can only use older algorithms, in which case setting this property to SHA1 may be helpful. **OldClientSideRSAFallback**: Specifies whether the SSH client should use a SHA1 fallback.Tells the SSH client to use a legacy ssh-rsa authentication even if the server indicates support for newer algorithms, such as rsa-sha-256. This is a backward-compatibility tweak. **PKICache**: Specifies which PKI elements (certificates, CRLs, OCSP responses) should be cached.The PKICache setting specifies which Public Key Infrastructure (PKI) elements should be cached to optimize performance and reduce retrieval times. It supports comma-separated values to indicate the specific types of PKI data that should be cached. Supported Values: | | | | --- | --- | | certificate | Enables caching of certificates. | | crl | Enables caching of Certificate Revocation Lists (CRLs). | | ocsp | Enables caching of OCSP (Online Certificate Status Protocol) responses. | Example (default value): ```text PKICache=certificate,crl,ocsp ``` In this example, the component caches certificates, CRLs, and OCSP responses. **PKICachePath**: Specifies the file system path where cached PKI data is stored.The PKICachePath setting defines the file system path where cached PKI data (e.g., certificates, CRLs, OCSP responses and Trusted Lists) will be stored. This allows the system to persistently save and retrieve PKI cache data, even across application restarts. The default value is an empty string - no cached PKI data is stored on disk. Example: ```text PKICachePath=C:\Temp\cache ``` In this example, the cached PKI data is stored in the C:\Temp\cache directory. **ProductVersion**: Returns the version of the SecureBlackbox library.This property returns the long version string of the SecureBlackbox library being used (major.minor.build.revision). **ServerSSLDHKeyLength**: Sets the size of the TLS DHE key exchange group.Use this property to adjust the length, in bits, of the DHE prime to be used by the TLS server. **StaticDNS**: Specifies whether static DNS rules should be used.Set this property to enable or disable static DNS rules for the class. Works only if *UseOwnDNSResolver* is set to *true*. Supported values are: | | | | | --- | --- | --- | | none | | No static DNS rules (default) | | local | | Local static DNS rules | | global | | Global static DNS rules | **StaticIPAddress[domain]**: Gets or sets an IP address for the specified domain name.Use this property to get or set an IP address for the specified domain name in the internal (of the class) or global DNS rules storage depending on the *StaticDNS* value. The type of the IP address (IPv4 or IPv6) is determined automatically. If both addresses are available, they are divided by the | (pipe) character. **StaticIPAddresses**: Gets or sets all the static DNS rules.Use this property to get static DNS rules from the current rules storage or restore them back between application sessions. If *StaticDNS* of the class is set to "*local*", the property returns/restores the rules from/to the internal storage of the class. If *StaticDNS* of the class is set to "*global*", the property returns/restores the rules from/to the GLOBAL storage. The rules list is returned and accepted in JSON format. **Tag**: Allows to store any custom data.Use this config property to store any custom data. **TLSSessionGroup**: Specifies the group name of TLS sessions to be used for session resumption.Use this property to limit the search of cached TLS sessions to the specified group. Sessions from other groups will be ignored. By default, all sessions are cached with an empty group name and available to all the classes. **TLSSessionLifetime**: Specifies lifetime in seconds of the cached TLS session.Use this property to specify how much time the TLS session should be kept in the session cache. After this time, the session expires and will be automatically removed from the cache. Default value is 300 seconds (5 minutes). **TLSSessionPurgeInterval**: Specifies how often the session cache should remove the expired TLS sessions.Use this property to specify the time interval of purging the expired TLS sessions from the session cache. Default value is 60 seconds (1 minute). **UseCRLObjectCaching**: Specifies whether reuse of loaded CRL objects is enabled.This setting enables or disables the caching of CRL objects. When set to true (the default value), the system checks if a CRL object is already loaded in memory before attempting to load a new instance. If the object is found, the existing instance is reused, and its reference count is incremented to track its usage. When the reference count reaches zero, indicating that no references to the object remain, the system will free the object from memory. This setting enhances performance by minimizing unnecessary object instantiation and promotes efficient memory management, particularly in scenarios where CRL objects are frequently used. **UseInternalRandom**: Switches between SecureBlackbox-own and platform PRNGs.Allows to switch between internal/native PRNG implementation and the one provided by the platform. **UseLegacyAdESValidation**: Enables legacy AdES validation mode.Use this setting to switch the AdES component to the validation approach that was used in SBB 2020/SBB 2022 (less attention to temporal details). **UseOCSPResponseObjectCaching**: Specifies whether reuse of loaded OCSP response objects is enabled.This setting enables or disables the caching of OCSP response objects. When set to true (the default value), the system checks if a OCSP response object is already loaded in memory before attempting to load a new instance. If the object is found, the existing instance is reused, and its reference count is incremented to track its usage. When the reference count reaches zero, indicating that no references to the object remain, the system will free the object from memory. This setting enhances performance by minimizing unnecessary object instantiation and promotes efficient memory management, particularly in scenarios where OCSP response objects are frequently used. **UseOwnDNSResolver**: Specifies whether the client components should use own DNS resolver.Set this global property to false to force all the client components to use the DNS resolver provided by the target OS instead of using own one. **UseSharedSystemStorages**: Specifies whether the validation engine should use a global per-process copy of the system certificate stores.Set this global property to false to make each validation run use its own copy of system certificate stores. **UseSystemNativeSizeCalculation**: An internal CryptoAPI access tweak.This is an internal setting. Please do not use it unless instructed by the support team. **UseSystemOAEPAndPSS**: Enforces or disables the use of system-driven RSA OAEP and PSS computations.This global setting defines who is responsible for performing RSA-OAEP and RSA-PSS computations where the private key is stored in a Windows system store and is exportable. If set to true, SBB will delegate the computations to Windows via a CryptoAPI call. Otherwise, it will export the key material and perform the computations using its own OAEP/PSS implementation. This setting only applies to certificates originating from a Windows system store. **UseSystemRandom**: Enables or disables the use of the OS PRNG.Use this global property to enable or disable the use of operating system-driven pseudorandom number generation. **XMLRDNDescriptorName[OID]**: Defines an OID mapping to descriptor names for the certificate's IssuerRDN or SubjectRDN.This property defines custom mappings between Object Identifiers (OIDs) and descriptor names. This mapping specifies how the certificate's issuer and subject information (ds:IssuerRDN and ds:SubjectRDN elements respectively) are represented in XML signatures. The property accepts comma-separated values where the first descriptor name is used when the OID is mapped, and subsequent values act as aliases for parsing. Syntax: ```text Config("XMLRDNDescriptorName[OID]=PrimaryName,Alias1,Alias2"); ``` Where: OID: The Object Identifier from the certificate's IssuerRDN or SubjectRDN that you want to map. PrimaryName: The main descriptor name used in the XML signature when the OID is encountered. Alias1, Alias2, ...: Optional alternative names recognized during parsing. Usage Examples: Map OID 2.5.4.5 to SERIALNUMBER: ```text Config("XMLRDNDescriptorName[2.5.4.5]=SERIALNUMBER"); ``` Map OID 1.2.840.113549.1.9.1 to E, with aliases EMAIL and EMAILADDRESS: ```text Config("XMLRDNDescriptorName[1.2.840.113549.1.9.1]=E,EMAIL,EMAILADDRESS"); ``` **XMLRDNDescriptorPriority[OID]**: Specifies the priority of descriptor names associated with a specific OID.This property specifies the priority of descriptor names associated with a specific OID that allows to reorder descriptors in the ds:IssuerRDN and ds:SubjectRDN elements during signing. **XMLRDNDescriptorReverseOrder**: Specifies whether to reverse the order of descriptors in RDN.Specifies whether to reverse the order of descriptors in the ds:IssuerRDN and ds:SubjectRDN elements during XML signing. By default, this property is set to true (as specified in RFC 2253, 2.1). **XMLRDNDescriptorSeparator**: Specifies the separator used between descriptors in RDN.Specifies the separator used between descriptors in the ds:IssuerRDN and ds:SubjectRDN elements during XML signing. By default, this property is set to ", " value. # MailWriter Errors ### MailWriter Errors | | | | --- | --- | | 1048577 | Invalid parameter ([SB_ERROR_INVALID_PARAMETER](constants.md#const_SBERRORINVALIDPARAMETER)) | | 1048578 | Invalid configuration ([SB_ERROR_INVALID_SETUP](constants.md#const_SBERRORINVALIDSETUP)) | | 1048579 | Invalid state ([SB_ERROR_INVALID_STATE](constants.md#const_SBERRORINVALIDSTATE)) | | 1048580 | Invalid value ([SB_ERROR_INVALID_VALUE](constants.md#const_SBERRORINVALIDVALUE)) | | 1048581 | Private key not found ([SB_ERROR_NO_PRIVATE_KEY](constants.md#const_SBERRORNOPRIVATEKEY)) | | 1048582 | Cancelled by the user ([SB_ERROR_CANCELLED_BY_USER](constants.md#const_SBERRORCANCELLEDBYUSER)) | | 1048583 | The file was not found ([SB_ERROR_NO_SUCH_FILE](constants.md#const_SBERRORNOSUCHFILE)) | | 1048584 | Unsupported feature or operation ([SB_ERROR_UNSUPPORTED_FEATURE](constants.md#const_SBERRORUNSUPPORTEDFEATURE)) | | 1048585 | General error ([SB_ERROR_GENERAL_ERROR](constants.md#const_SBERRORGENERALERROR)) | | 22020097 | Failed to assemble the mail message ([SB_ERROR_MAIL_ASSEMBLY_FAILED](constants.md#const_SBERRORMAILASSEMBLYFAILED)) | | 22020098 | Failed to assemble the mail message ([SB_ERROR_MAIL_PARSING_FAILED](constants.md#const_SBERRORMAILPARSINGFAILED)) | | 22020099 | No decryption certificate found ([SB_ERROR_MAIL_NO_DECRYPTION_CERTIFICATE](constants.md#const_SBERRORMAILNODECRYPTIONCERTIFICATE)) |