Send-Email Cmdlet

Parameters Output Objects Config Settings

The Send-Email component is used to send Internet mail using the SMTP protocol (the Internet mail standard).

Syntax

Send-Email [parameters]

Remarks

This cmdlet implements a standard SMTP client as specified in RFC 821, and also supports the SSL-enabled equivalent (RFC 2487). To send a message, set the Server, To, Subject, From, and Message parameters.

Additional recipients can be set with the CC and BCC parameters. To specify multiple recipients, in the To, CC, and BCC parameters, simply specify the destination email addresses separated by commas.

One or more attachments can be added by setting the Attachment parameter. HTML Messages may be sent by setting the MessageHTML parameter.

SSL communications are supported. When communicating with an SSL server, set the SSL parameter. If authentication is required, set the Credential parameter.

The cmdlets support pipeline input for some of their parameters. Prebuilding an object and piping it to the cmdlet is very useful, but should be used with caution to prevent security conflicts. Steps have been taken to decrease the risk of a possibly accidental pipe to the cmdlet, for instance, the Credential parameter cannot be piped to the cmdlet and must be specified manually.

# Send a simple message send-email -server myserver -from myuser@mydomain -to friend@domain -subject "my subject" -message "message text" -attachment "C:\test.txt" # Send an HMTL message send-email -server myserver -from myuser@mydomain -to friend@domain -subject "New subject" -messagehtml "HTML Message"

Connection Handling

This cmdlet supports persistent connections through the Connection parameter. To establish a new Email connection, use the Connect-Email cmdlet. To close the connection, use the Disconnect-Email cmdlet.

Parameter List

The following is the full list of the parameters of the cmdlet with short descriptions. Click on the links for further details.


Connection	An already established connection.
LogFile	The location of a file to which debug information is written.
Attachment	The path to any files which are to be attached to the message.
AuthMechanism	The authentication mechanism to be used when connecting to the mail server.
BCC	A comma separated list of addresses for blind carbon copies (optional).
CC	A comma separated list of addresses for carbon copies (optional).
CertPassword	The password to the certificate store.
CertStore	The name of the certificate store for the client certificate.
CertStoreType	The type of certificate store for the client certificate.
CertSubject	The subject of the certificate used for client authentication.
Config	Specifies one or more configuration settings.
Credential	The PSCredential object to use for user/password authentication.
FirewallHost	Name or IP address of firewall.
FirewallPassword	A password if authentication is to be used when connecting through the firewall.
FirewallPort	The port of the firewall to which to connect.
FirewallType	Determines the type of firewall to connect through.
FirewallUser	A user name if authentication is to be used connecting through a firewall.
Force	Forces the component to accept the default behavior instead of querying the user.
From	The email address of the sender (required).
Importance	Importance of the mail message.
LocalIP	The IP address of the local interface to use.
LogFile	The location of a file to which debug information is written.
Message	The full text of the message to be sent (without headers).
MessageHTML	The full text of the HTML message to be sent (without headers).
MessageId	Sets the message Id used by the component.
Password	The password to use for authentication.
Port	The TCP port in the remote host to which to connect.
ReplyTo	The email address to which replies should be sent.
Server	The address of the Server.
SSL	Determines how the component starts SSL negotiation.
SSLAccept	The encoded public key of the certificate which is to be trusted explicitly.
Subject	The subject of the email.
Timeout	The maximum time allowed for the operation.
To	A comma separated list of addresses for destinations.
User	The username to use for authentication.

Output Objects

The following is the full list of the output objects returned by the cmdlet with short descriptions. Click on the links for further details.


SMTPDelivery	Object which indicates whether the message was received.

Config Settings

The following is a list of config settings for the cmdlet with short descriptions. Click on the links for further details.


AllowEmptyTo	If set to True, then the SendTo property is not required.
AuthorizationIdentity	The value to use as the authorization identity when SASL authentication is used.
Charset	When set, the message headers will be encoded using the specified Charset.
Hello	The argument for HELO (herald) command to the server (defaults to local host name).
KeepQueue	If set to True, queued files are not deleted after a successful send.
MaxHeaderLength	Maximum length for headers to avoid line folding (default 80).
MessageHeadersString	String representation of RFC822-encoded headers of the message.
MessageIdAlgorithm	Determines the algorithm used to hash the random MessageId.
OtherHeaders	An RFC 822 compliant string consisting of extra headers.
ReturnPath	Sets the Return-Path to be used for sending email.
SendRSET	Whether to send RSET command.
StopOnBccErrors	Instructs the component to stop sending the message if the server does not acknowledge any of the BCCs.
StopOnCcErrors	Instructs the component to stop sending the message if the server does not acknowledge any of the CCs.
StopOnToErrors	Instructs the component to stop sending the message if the server does not acknowledge any of the TOs.
TransferText	String representation of RFC822-encoded body of the message.
ConnectionTimeout	Sets a separate timeout value for establishing a connection.
FirewallAutoDetect	Tells the component whether or not to automatically detect and use firewall system settings, if available.
FirewallHost	Name or IP address of firewall (optional).
FirewallPassword	Password to be used if authentication is to be used when connecting through the firewall.
FirewallPort	The TCP port for the FirewallHost;.
FirewallType	Determines the type of firewall to connect through.
FirewallUser	A user name if authentication is to be used connecting through a firewall.
KeepAliveInterval	The retry interval, in milliseconds, to be used when a TCP keep-alive packet is sent and no response is received.
KeepAliveTime	The inactivity time in milliseconds before a TCP keep-alive packet is sent.
Linger	When set to True, connections are terminated gracefully.
LingerTime	Time in seconds to have the connection linger.
LocalHost	The name of the local host through which connections are initiated or accepted.
LocalPort	The port in the local host where the component binds.
MaxLineLength	The maximum amount of data to accumulate when no EOL is found.
MaxTransferRate	The transfer rate limit in bytes per second.
ProxyExceptionsList	A semicolon separated list of hosts and IPs to bypass when using a proxy.
TCPKeepAlive	Determines whether or not the keep alive socket option is enabled.
TcpNoDelay	Whether or not to delay when sending packets.
UseIPv6	Whether to use IPv6.
AbsoluteTimeout	Determines whether timeouts are inactivity timeouts or absolute timeouts.
FirewallData	Used to send extra data to the firewall.
InBufferSize	The size in bytes of the incoming queue of the socket.
OutBufferSize	The size in bytes of the outgoing queue of the socket.
BuildInfo	Information about the product's build.
CodePage	The system code page used for Unicode to Multibyte translations.
LicenseInfo	Information about the current license.
MaskSensitive	Whether sensitive data is masked in log messages.
UseInternalSecurityAPI	Tells the component whether or not to use the system security libraries or an internal implementation.

LogFile Parameter (Send-Email Cmdlet)

The location of a file to which debug information is written.

Syntax

Send-Email -LogFile string

Remarks

When specified, the cmdlet will log debug information to the file. If the file exists, the information will be appended.

Default Value

null

Connection Parameter (Send-Email Cmdlet)

An existing Email connection.

Syntax

Send-Email -Connection EmailConnection

Remarks

Represents an existing, persistent Email connection to be used. After this cmdlet executes, the connection will remain opened to be used in an another call. New connections can be established using the Connect-Email cmdlet and closed using the Disconnect-Email cmdlet.

Default Value

null

Attachment Property (Send-Email Cmdlet)

The path to any files which are to be attached to the message.

Syntax

Send-Email -Attachment string[]

Remarks

Set Attachment to the path of a file on your system that you would like to send as an attachment with your message. The cmdlet will open the file and encode its contents in MIME format.

Default Value

null

AuthMechanism Property (Send-Email Cmdlet)

The authentication mechanism to be used when connecting to the mail server.

Syntax

Send-Email -AuthMechanism string

Remarks

The applicable values are the following:


UserPassword (default)	Default plaintext authentication is used to login to the server.
CRAMMD5	The more secure CRAM-MD5 authentication is used instead.
NTLM	NTLM authentication will be used.
SASLPlain	AuthMechanism can be set to SASLPlain (4) as well. Note, however, that servers will often require SSL or some other encrypted session protection be used when this authentication mechanism is requested.
Kerberos	Kerberos authentication will be used.

Default Value

BCC Property (Send-Email Cmdlet)

A comma separated list of addresses for blind carbon copies (optional).

Syntax

Send-Email -BCC string

Remarks

BCC specifies a comma separated list of destinations for blind carbon copies of the mail message. A copy of the message is sent to each destination, but no BCc SMTP header is created containing the destination addresses, so individual recipients never see the list of the other recipients.

Default Value

CC Property (Send-Email Cmdlet)

A comma separated list of addresses for carbon copies (optional).

Syntax

Send-Email -CC string

Remarks

CC specifies a comma separated list of destinations for carbon copies of the mail message. A copy of the message is sent to each destination, and a Cc SMTP header is created containing the destination addresses. This header is sent to every recipient of the message. If you don't want to copy this information to every recipient, then use blind carbon copies instead (see the description of BCC).

Default Value

CertPassword Property (Send-Email Cmdlet)

The password to the certificate store.

Syntax

Send-Email -CertPassword string

Remarks

Specifies a password (if required) to access the specified certificate store.

Default Value

Parameter Alias

CertificatePassword

CertStore Property (Send-Email Cmdlet)

The name of the certificate store for the client certificate.

Syntax

Send-Email -CertStore string

Remarks

The CertStoreType parameter specifies the type of the certificate store specified by CertStore. If the store is password protected, specify the password in CertPassword.

CertStore is used in conjunction with the CertSubject parameter in order to specify client certificates. If CertStore has a value, and CertSubject has been set, a search for a certificate is initiated during logon. Please refer to the CertSubject parameter for details.

Designations of certificate stores are platform-dependent.

The following are designations of the most common User and Machine certificate stores in Windows:


MY	A certificate store holding personal certificates with their associated private keys.
CA	Certifying authority certificates.
ROOT	Root certificates.
SPC	Software publisher certificates.

When the certificate store type is PFXFile, this parameter must be set to the name of the file.

Default Value

"MY"

Parameter Alias

CertificateStore

CertStoreType Property (Send-Email Cmdlet)

The type of certificate store for the client certificate.

Syntax

Send-Email -CertStoreType string

Remarks

This parameter can take one of the following values:


User (default)	This specifies that the certificate store is owned by the current user (these are the user's registry certificate stores such as MY, CA, etc.).
Machine	The certificate store is a machine store.
PFXFile	The certificate store is the name of a PFX (PKCS12) file containing certificates.
PFXBlob	The certificate store is a string (base64 encoded) representing a certificate store in PFX (PKCS12) format. You should use this option if storing a pfx file's content in a shell variable.
PEMKeyFile	The certificate store is the name of a file that contains a PEM encoded certificate and private key.
PEMKeyBlob	The certificate store is a string that contains a PEM encoded certificate and private key.
P7BFile	The certificate store is the name of a file that contains P7B encoded certificates.
SSHPublicKeyFile	The certificate store is the name of a file that contains an SSH-style public key.
PPKFile	The certificate store is the name of a file that contains a PPK (PuTTY Private Key).
PPKBlob	The certificate store is a string (binary) that contains a PPK (PuTTY Private Key).

Default Value

CertSubject Property (Send-Email Cmdlet)

The subject of the certificate used for client authentication.

Syntax

Send-Email -CertSubject string

Remarks

During the user authentication phase of the logon process, the cmdlet will search the store specified in CertStore for a certificate that matches this parameter. If the store contains a private key for that certificate, it is used to verify the user's identity with the secure server.

When this parameter is set, a search is performed in the current certificate store certificate with matching subject.

If an exact match is not found, the store is searched for subjects containing the value of the parameter.

When setting the parameter to a partial subject, CN= should be omitted. For example, the following code would find the certificate with subject CN=Test Certificate, OU=People, C=US

Example (Searching with partial subject)

-certsubject "Test"

If a match is not found, the parameter is set to an empty string, and no certificate is selected.

The special value "*" picks a random certificate in the certificate store.

Default Value

"*"

Config Property (Send-Email Cmdlet)

Specifies one or more configuration settings.

Syntax

Send-Email -Config string[]

Remarks

The Config parameter takes one or more name-value pairs that represent the name of the configuration setting and value, i.e.: -config "Name=Value"

Default Value

null

Credential Property (Send-Email Cmdlet)

The PSCredential object to use for user/password authentication.

Syntax

Send-Email -Credential PSCredential

Remarks

Every cmdlet that supports user authentication will expose a Credential parameter. A PSCredential object should be specified for this parameter. Alternatively, the User and Password parameters can be set to represent the credential information.

If the cmdlet supports client key authentication it uses the password field of this object for the certificate's password. This setting is enabled by using public key authentication. Note: Due to security reasons, it is recommended that you use the Credential parameter rather than User and Password to specify the authentication information.

Default Value

null

Parameter Position

Parameter Alias

auth

FirewallHost Property (Send-Email Cmdlet)

Name or IP address of firewall.

Syntax

Send-Email -FirewallHost string

Remarks

If a FirewallHost is given, requested connections will be authenticated through the specified firewall when connecting.

If the FirewallHost parameter is set to a Domain Name, a DNS request is initiated. Upon successful termination of the request, the FirewallHost parameter is set to the corresponding address. If the search is not successful, an error is returned.

Default Value

FirewallPassword Property (Send-Email Cmdlet)

A password if authentication is to be used when connecting through the firewall.

Syntax

Send-Email -FirewallPassword string

Remarks

If FirewallHost is specified, the FirewallUser and FirewallPassword properties are used to authenticate against the firewall.

Default Value

FirewallPort Property (Send-Email Cmdlet)

The port of the firewall to which to connect.

Syntax

Send-Email -FirewallPort int

Remarks

The TCP port for the FirewallHost. See the description of the FirewallHost parameter for details.

Note that the FirewallPort is set automatically when FirewallType is set to a valid value. See the description of the FirewallType parameter for details. Setting this parameter will overwrite the default settings for the firewall port as specified by FirewallType.

Default Value

FirewallType Property (Send-Email Cmdlet)

Determines the type of firewall to connect through.

Syntax

Send-Email -FirewallType string

Remarks

The applicable values are the following:


None	No firewall (default setting).
Tunnel	Connect through a tunneling proxy. FirewallPort is set to 80.
SOCKS4	Connect through a SOCKS4 Proxy. FirewallPort is set to 1080.
SOCKS5	Connect through a SOCKS5 Proxy. FirewallPort is set to 1080.

Default Value

FirewallUser Property (Send-Email Cmdlet)

A user name if authentication is to be used connecting through a firewall.

Syntax

Send-Email -FirewallUser string

Remarks

If FirewallHost is specified, the FirewallUser and FirewallPassword properties are used to authenticate against the firewall.

Default Value

Force Property (Send-Email Cmdlet)

Forces the component to accept the default behavior instead of querying the user.

Syntax

Send-Email -Force SwitchParameter

Remarks

The Force parameter is especially useful in a script environment where user interaction is not an option. Certain cmdlets that are SSH and SSL based will query the user if the security credentials of the certificate presented by the server are not met. Setting this parameter will force the cmdlet to accept the certificate of the server unconditionally.

Default Value

false

From Property (Send-Email Cmdlet)

The email address of the sender (required).

Syntax

Send-Email -From string

Remarks

From is used to create a From SMTP header. This header identifies the sender of the message. A valid email address is required. Examples of valid addresses are: "Friendly Name" <address@company.com> or address@company.com

Default Value

Parameter Position

This is a required parameter.

Importance Property (Send-Email Cmdlet)

Importance of the mail message.

Syntax

Send-Email -Importance string

Remarks

When set, an Importance header will added to the message. Importance is an indication to the recipient(s) about how important the message is. The possible values are High, Normal, and Low.

Default Value

LocalIP Property (Send-Email Cmdlet)

The IP address of the local interface to use.

Syntax

Send-Email -LocalIP string

Remarks

This parameter is useful when the cmdlet is running on a machine that has more than one network interface (each with its own IP address and network access privileges).

Default Value

Parameter Alias

LocalAddress

LogFile Property (Send-Email Cmdlet)

The location of a file to which debug information is written.

Syntax

Send-Email -LogFile string

Remarks

When specified, the cmdlet will log debug information to the file. If the file exists, the information will be appended.

Default Value

Message Property (Send-Email Cmdlet)

The full text of the message to be sent (without headers).

Syntax

Send-Email -Message string

Remarks

Message should contain the full text of the message.

It is advisable that the text contained in this parameter be a collection of lines with lengths less than or equal to 80 bytes separated by CR LF. The text in the message lines must contain 7-bit characters so that the message can be successfully pass through the multitude of mail systems on the Internet.

The cmdlet automatically escapes lines that start with a "." by adding another as specified in RFC 821. The message text is unescaped by the receiving agent, so the process is fully transparent.

Default Value

MessageHTML Property (Send-Email Cmdlet)

The full text of the HTML message to be sent (without headers).

Syntax

Send-Email -MessageHTML string

Remarks

MessageHTML should contain the full text of the message.

If both MessageHTML and Message are set, the cmdlet will create a multipart alternative MIME message with both these properties.

Default Value

MessageId Property (Send-Email Cmdlet)

Sets the message Id used by the component.

Syntax

Send-Email -MessageId string

Remarks

If set to "*" (default value) the cmdlet will generate a random message Id.

Default Value

"*"

Password Property (Send-Email Cmdlet)

The password to use for authentication.

Syntax

Send-Email -Password string

Remarks

Every time User, or Password are set, the cmdlet will authenticate with the server. It is recommended that the Credential parameter is set instead of User/Password because of security reasons. If both Credential and this parameter is set, the Credential value is used.

Default Value

Port Property (Send-Email Cmdlet)

The TCP port in the remote host to which to connect.

Syntax

Send-Email -Port int

Remarks

Port specifies a service port on the remote host to which to connect.

A valid port number (a value between 1 and 65535) is required for the connection to take place.

Default Value

ReplyTo Property (Send-Email Cmdlet)

The email address to which replies should be sent.

Syntax

Send-Email -ReplyTo string

Remarks

ReplyTo is used to create a Reply-To SMTP header. If this header is present, replies to this email will be sent to the Reply-To address rather than the From address. This property is not required. Examples of valid addresses are: "Friendly Name" <address@company.com> or address@company.com

Default Value

Server Property (Send-Email Cmdlet)

The address of the Server.

Syntax

Send-Email -Server string

Remarks

The cmdlet requires a server address to be provided. Either an IP address or the server host name can be provided.

Default Value

Parameter Position

This is a required parameter.

SSL Property (Send-Email Cmdlet)

Determines how the component starts SSL negotiation.

Syntax

Send-Email -SSL string

Remarks

SSL may have one of the following values:


none (default)	No SSL negotiation, no SSL security. All communication will be in plaintext mode.
automatic	If the Port is set to the standard plaintext port of the protocol (where applicable), the cmdlet will behave the same as if SSL is set to explicit. In all other cases, SSL negotiation will be implicit.
implicit	The SSL negotiation will start immediately after the connection is established.
explicit	The cmdlet will first connect in plaintext, and then explicitly start SSL negotiation through a protocol command such as STARTTLS.

Default Value

SSLAccept Property (Send-Email Cmdlet)

The encoded public key of the certificate which is to be trusted explicitly.

Syntax

Send-Email -SSLAccept string

Remarks

Ordinarily, the certificate presented by the server will be checked against the system certificate stores to see if the Certificate Authority is trusted, and if not, the cmdlet will prompt the user to accept the certificate. Setting this parameter will override the system settings and trust the certificate provided.

After each connection, regardless of whether or not the certificate was trusted, the cmdlet will store the certificate presented by the server in the $SSLServerCertificate session variable. This variable can be inspected to view details of the server's certificate.

If the Force parameter is set, the cmdlet will accept the server's certificate unconditionally.

In cases where the certificate presented by the server is not trusted, a prompt will be shown to the user. This prompt will allow the user to decide whether or not they would like to accept the certificate presented by the server.

There may be cases where you do not want a prompt to be displayed or would like to handle the response supplied directly within your script. This can be done by setting the $SSLAcceptPreference variable prior to running the cmdlet. The available values for this variable are:


None (default)	Maintains the default behavior. If the certificate is not trusted by default, the user will be prompted.
Accept	Accepts the certificate without prompting the user, even if it is not trusted by default.
Reject	Rejects the certificate without prompting the user only if it is not trusted by default. Thus if the certificate is found to be trusted or the Force parameter is set, the connection will still be accepted.

Default Value

Parameter Alias

Subject Property (Send-Email Cmdlet)

The subject of the email.

Syntax

Send-Email -Subject string

Remarks

The string in Subject is sent with a Subject SMTP header to the mail recipient.

Default Value

Timeout Property (Send-Email Cmdlet)

The maximum time allowed for the operation.

Syntax

Send-Email -Timeout int

Remarks

After the specified interval in seconds, the cmdlet will throw a Timeout error if the operation is not completed.

Default Value

To Property (Send-Email Cmdlet)

A comma separated list of addresses for destinations.

Syntax

Send-Email -To string

Remarks

To specifies a comma separated list of destinations for the mail message. A copy of the message is sent to each of them, and a To SMTP header is created containing the destination addresses.

Examples of valid addresses are: "Friendly Name" <address@company.com> or address@company.com

Default Value

Parameter Position

User Property (Send-Email Cmdlet)

The username to use for authentication.

Syntax

Send-Email -User string

Remarks

Every time User and Password are set, the cmdlet will authenticate with the server. It is recommended that the Credential parameter is set instead of User/Password because of security reasons. If both Credential and this parameter is set, the Credential value is used.

Default Value

SMTPDelivery Output Object (Send-Email Cmdlet)

Object which indicates whether the message was received.

Syntax

Object SMTPDelivery {
   string Server;
   string Recipient;
   string MessageId;
}

Remarks

After sending a message, the Recipient on the indicated Server and the MessageId will be reported.

Config Settings (Send-Email Cmdlet)

The cmdlet 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 cmdlet, access to these internal properties is provided through the Config method.

SMTP Config Settings

AllowEmptyTo: If set to True, then the SendTo property is not required.

Normally, the SendTo property is required to send a message. If AllowEmptyTo is True, then this is not the case, and messages can be sent with just one or both of Cc and BCc set.

AuthorizationIdentity: The value to use as the authorization identity when SASL authentication is used.

When AuthMechanism is set to amXOAUTH2 you may use this setting to specify an authorization identity to be used when authenticating. In the case of amXOAUTH2, this should be your OAUTH authorization string. For instance:

Bearer ya29.AHES6ZRmS-8xPbpGetC1VbABJIBRdKm-c4X7wMVGAbgxdGt5q8Ts3Q

Note: When using amXOAUTH2, User must be specified, but Password is not required.

Charset: When set, the message headers will be encoded using the specified Charset.

This property is used to specify the "charset" to be used to encode the message headers. For example, to use UTF-8 you can set this property to "UTF-8". The default value is "" (empty string) in which case the headers will not be encoded.

Hello: The argument for HELO (herald) command to the server (defaults to local host name).

The Hello property specifies a string to send to the MailServer at connection time as an argument to the SMTP HELO command. This generally identifies the host sending mail, and that's why the Hello property defaults to the name of the local host. The property is provided in case the cmdlet does not accept the default value and a custom value (such as, for example, a fully qualified domain name) must be sent.

If AllowExtensions is True the EHLO command will be sent instead of the HELO command.

KeepQueue: If set to True, queued files are not deleted after a successful send.

Normally, ProcessQueue deletes queued files after processing them. If KeepQueue is True, the file extension is instead changed to ".sent" and the files are not deleted.

MaxHeaderLength: Maximum length for headers to avoid line folding (default 80).

The MaxHeaderLength specifies the maximum line length supported by the mail delivery system. Any headers longer than MaxHeaderLength are folded as specified in RFC 822.

It is generally a good idea to use a MaxHeaderLength of less than 100 bytes, although different mail relays and mail servers have different requirements for header lengths.

MessageHeadersString: String representation of RFC822-encoded headers of the message.

This setting holds the full headers of the message in RFC822 format. Use this along with TransferText to store the entire message in RFC822 format.

As an example: smtp1.Send(); string rawMsg = smtp1.Config("MessageHeadersString") + smtp1.Config("TransferText");

MessageIdAlgorithm: Determines the algorithm used to hash the random MessageId.

The MessageIdAlgorithm specifies which algorithm to use in the hash for the MessageId when the property is set to "*". The default value is "SHA1".

Possible values are:

"MD5"
"SHA1" (default)
"SHA256"

OtherHeaders: An RFC 822 compliant string consisting of extra headers.

This is the same as the OtherHeaders property. This setting is exposed here for use by cmdlets that inherit from SMTP.

ReturnPath: Sets the Return-Path to be used for sending email.

This is the same as the ReturnPath property. This setting is exposed here for use by cmdlets that inherit from SMTP.

SendRSET: Whether to send RSET command.

By default, the cmdlet will periodically send the RSET command to the server. Changing this configuration setting to False will prevent the RSET command from being sent. This can be useful when interacting with some servers that do not respond properly to the RSET command.

StopOnBccErrors: Instructs the cmdlet to stop sending the message if the server does not acknowledge any of the BCCs.

If this setting is set to True, the cmdlet will fail the moment the server does not acknowledge a Bcc address. If set to False, an error will be fired for every Bcc that is not recognized by the server, but the message will be sent to the rest of the recipients. The default value is False.

StopOnCcErrors: Instructs the cmdlet to stop sending the message if the server does not acknowledge any of the CCs.

If this setting is set to True, the cmdlet will fail the moment the server does not acknowledge a Cc address. If set to False, an error will be fired for every Cc that is not recognized by the server, but the message will be sent to the rest of the recipients. The default value is True.

StopOnToErrors: Instructs the cmdlet to stop sending the message if the server does not acknowledge any of the TOs.

If this setting is set to True, the cmdlet will fail the moment the server does not acknowledge a To address. If set to False, an error will be fired for every To that is not recognized by the server, but the message will be sent to the rest of the recipients. The default value is True.

TransferText: String representation of RFC822-encoded body of the message.

This setting holds the full body of the message in RFC822 format. Use this along with MessageHeadersString to store the entire message in RFC822 format.

As an example: smtp1.Send(); string rawMsg = smtp1.Config("MessageHeadersString") + smtp1.Config("TransferText");

TCPClient Config Settings

ConnectionTimeout: Sets a separate timeout value for establishing a connection.

When set, this configuration setting allows you to specify a different timeout value for establishing a connection. Otherwise, the cmdlet will use Timeout for establishing a connection and transmitting/receiving data.

FirewallAutoDetect: Tells the cmdlet whether or not to automatically detect and use firewall system settings, if available.

This configuration setting is provided for use by cmdlets that do not directly expose Firewall properties.

FirewallHost: Name or IP address of firewall (optional).

If a FirewallHost is given, requested connections will be authenticated through the specified firewall when connecting.

If the FirewallHost setting is set to a Domain Name, a DNS request is initiated. Upon successful termination of the request, the FirewallHost setting is set to the corresponding address. If the search is not successful, an error is returned.

Note: This setting is provided for use by cmdlets that do not directly expose Firewall properties.

FirewallPassword: Password to be used if authentication is to be used when connecting through the firewall.

If FirewallHost is specified, the FirewallUser and FirewallPassword settings are used to connect and authenticate to the given firewall. If the authentication fails, the cmdlet throws an exception.

Note: This setting is provided for use by cmdlets that do not directly expose Firewall properties.

FirewallPort: The TCP port for the FirewallHost;.

The FirewallPort is set automatically when FirewallType is set to a valid value.

Note: This configuration setting is provided for use by cmdlets that do not directly expose Firewall properties.

FirewallType: Determines the type of firewall to connect through.

The appropriate values are as follows:


0	No firewall (default setting).
1	Connect through a tunneling proxy. FirewallPort is set to 80.
2	Connect through a SOCKS4 Proxy. FirewallPort is set to 1080.
3	Connect through a SOCKS5 Proxy. FirewallPort is set to 1080.
10	Connect through a SOCKS4A Proxy. FirewallPort is set to 1080.

Note: This setting is provided for use by cmdlets that do not directly expose Firewall properties.

FirewallUser: A user name if authentication is to be used connecting through a firewall.

If the FirewallHost is specified, the FirewallUser and FirewallPassword settings are used to connect and authenticate to the Firewall. If the authentication fails, the cmdlet throws an exception.

Note: This setting is provided for use by cmdlets that do not directly expose Firewall properties.

KeepAliveInterval: The retry interval, in milliseconds, to be used when a TCP keep-alive packet is sent and no response is received.

When set, TCPKeepAlive will automatically be set to True. A TCP keep-alive packet will be sent after a period of inactivity as defined by KeepAliveTime. If no acknowledgment is received from the remote host, the keep-alive packet will be sent again. This configuration setting specifies the interval at which the successive keep-alive packets are sent in milliseconds. This system default if this value is not specified here is 1 second.

Note: This value is not applicable in macOS.

KeepAliveTime: The inactivity time in milliseconds before a TCP keep-alive packet is sent.

When set, TCPKeepAlive will automatically be set to True. By default, the operating system will determine the time a connection is idle before a Transmission Control Protocol (TCP) keep-alive packet is sent. This system default if this value is not specified here is 2 hours. In many cases, a shorter interval is more useful. Set this value to the desired interval in milliseconds.

Linger: When set to True, connections are terminated gracefully.

This property controls how a connection is closed. The default is True.

In the case that Linger is True (default), two scenarios determine how long the connection will linger. In the first, if LingerTime is 0 (default), the system will attempt to send pending data for a connection until the default IP timeout expires.

In the second scenario, if LingerTime is a positive value, the system will attempt to send pending data until the specified LingerTime is reached. If this attempt fails, then the system will reset the connection.

The default behavior (which is also the default mode for stream sockets) might result in a long delay in closing the connection. Although the cmdlet returns control immediately, the system could hold system resources until all pending data are sent (even after your application closes).

Setting this property to False forces an immediate disconnection. If you know that the other side has received all the data you sent (e.g., by a client acknowledgment), setting this property to False might be the appropriate course of action.

LingerTime: Time in seconds to have the connection linger.

LingerTime is the time, in seconds, the socket connection will linger. This value is 0 by default, which means it will use the default IP timeout.

LocalHost: The name of the local host through which connections are initiated or accepted.

The LocalHost setting contains the name of the local host as obtained by the gethostname() system call, or if the user has assigned an IP address, the value of that address.

In multi-homed hosts (machines with more than one IP interface) setting LocalHost to the value of an interface will make the cmdlet initiate connections (or accept in the case of server cmdlets) only through that interface.

If the cmdlet is connected, the LocalHost setting shows the IP address of the interface through which the connection is made in internet dotted format (aaa.bbb.ccc.ddd). In most cases, this is the address of the local host, except for multi-homed hosts (machines with more than one IP interface).

LocalPort: The port in the local host where the cmdlet binds.

This must be set before a connection is attempted. It instructs the cmdlet to bind to a specific port (or communication endpoint) in the local machine.

Setting this to 0 (default) enables the system to choose a port at random. The chosen port will be shown by LocalPort after the connection is established.

LocalPort cannot be changed once a connection is made. Any attempt to set this when a connection is active will generate an error.

This; setting is useful when trying to connect to services that require a trusted port in the client side. An example is the remote shell (rsh) service in UNIX systems.

MaxLineLength: The maximum amount of data to accumulate when no EOL is found.

MaxLineLength is the size of an internal buffer, which holds received data while waiting for an EOL string.

If an EOL string is found in the input stream before MaxLineLength bytes are received, the DataIn event is fired with the EOL parameter set to True, and the buffer is reset.

If no EOL is found, and MaxLineLength bytes are accumulated in the buffer, the DataIn event is fired with the EOL parameter set to False, and the buffer is reset.

The minimum value for MaxLineLength is 256 bytes. The default value is 2048 bytes.

MaxTransferRate: The transfer rate limit in bytes per second.

This configuration setting can be used to throttle outbound TCP traffic. Set this to the number of bytes to be sent per second. By default, this is not set and there is no limit.

ProxyExceptionsList: A semicolon separated list of hosts and IPs to bypass when using a proxy.

This configuration setting optionally specifies a semicolon-separated list of hostnames or IP addresses to bypass when a proxy is in use. When requests are made to hosts specified in this property, the proxy will not be used. For instance:

www.google.com;www.nsoftware.com

TCPKeepAlive: Determines whether or not the keep alive socket option is enabled.

If set to True, the socket's keep-alive option is enabled and keep-alive packets will be sent periodically to maintain the connection. Set KeepAliveTime and KeepAliveInterval to configure the timing of the keep-alive packets.

Note: This value is not applicable in Java.

TcpNoDelay: Whether or not to delay when sending packets.

When true, the socket will send all data that is ready to send at once. When false, the socket will send smaller buffered packets of data at small intervals. This is known as the Nagle algorithm.

By default, this config is set to false.

UseIPv6: Whether to use IPv6.

When set to 0 (default), the cmdlet will use IPv4 exclusively. When set to 1, the cmdlet will use IPv6 exclusively. To instruct the cmdlet to prefer IPv6 addresses, but use IPv4 if IPv6 is not supported on the system, this setting should be set to 2. The default value is 0. Possible values are:


0	IPv4 Only
1	IPv6 Only
2	IPv6 with IPv4 fallback

Socket Config Settings

AbsoluteTimeout: Determines whether timeouts are inactivity timeouts or absolute timeouts.

If AbsoluteTimeout is set to True, any method which does not complete within Timeout seconds will be aborted. By default, AbsoluteTimeout is False, and the timeout is an inactivity timeout.

Note: This option is not valid for UDP ports.

FirewallData: Used to send extra data to the firewall.

When the firewall is a tunneling proxy, use this property to send custom (additional) headers to the firewall (e.g. headers for custom authentication schemes).

InBufferSize: The size in bytes of the incoming queue of the socket.

This is the size of an internal queue in the TCP/IP stack. You can increase or decrease its size depending on the amount of data that you will be receiving. Increasing the value of the InBufferSize setting can provide significant improvements in performance in some cases.

Some TCP/IP implementations do not support variable buffer sizes. If that is the case, when the cmdlet is activated the InBufferSize reverts to its defined size. The same happens if you attempt to make it too large or too small.

OutBufferSize: The size in bytes of the outgoing queue of the socket.

This is the size of an internal queue in the TCP/IP stack. You can increase or decrease its size depending on the amount of data that you will be sending. Increasing the value of the OutBufferSize setting can provide significant improvements in performance in some cases.

Some TCP/IP implementations do not support variable buffer sizes. If that is the case, when the cmdlet is activated the OutBufferSize reverts to its defined size. The same happens if you attempt to make it too large or too small.

Base Config Settings

BuildInfo: Information about the product's build.

When queried, this setting will return a string containing information about the product's build.

CodePage: The system code page used for Unicode to Multibyte translations.

The default code page is Unicode UTF-8 (65001).

The following is a list of valid code page identifiers:


Identifier	Name
037	IBM EBCDIC - U.S./Canada
437	OEM - United States
500	IBM EBCDIC - International
708	Arabic - ASMO 708
709	Arabic - ASMO 449+, BCON V4
710	Arabic - Transparent Arabic
720	Arabic - Transparent ASMO
737	OEM - Greek (formerly 437G)
775	OEM - Baltic
850	OEM - Multilingual Latin I
852	OEM - Latin II
855	OEM - Cyrillic (primarily Russian)
857	OEM - Turkish
858	OEM - Multilingual Latin I + Euro symbol
860	OEM - Portuguese
861	OEM - Icelandic
862	OEM - Hebrew
863	OEM - Canadian-French
864	OEM - Arabic
865	OEM - Nordic
866	OEM - Russian
869	OEM - Modern Greek
870	IBM EBCDIC - Multilingual/ROECE (Latin-2)
874	ANSI/OEM - Thai (same as 28605, ISO 8859-15)
875	IBM EBCDIC - Modern Greek
932	ANSI/OEM - Japanese, Shift-JIS
936	ANSI/OEM - Simplified Chinese (PRC, Singapore)
949	ANSI/OEM - Korean (Unified Hangul Code)
950	ANSI/OEM - Traditional Chinese (Taiwan; Hong Kong SAR, PRC)
1026	IBM EBCDIC - Turkish (Latin-5)
1047	IBM EBCDIC - Latin 1/Open System
1140	IBM EBCDIC - U.S./Canada (037 + Euro symbol)
1141	IBM EBCDIC - Germany (20273 + Euro symbol)
1142	IBM EBCDIC - Denmark/Norway (20277 + Euro symbol)
1143	IBM EBCDIC - Finland/Sweden (20278 + Euro symbol)
1144	IBM EBCDIC - Italy (20280 + Euro symbol)
1145	IBM EBCDIC - Latin America/Spain (20284 + Euro symbol)
1146	IBM EBCDIC - United Kingdom (20285 + Euro symbol)
1147	IBM EBCDIC - France (20297 + Euro symbol)
1148	IBM EBCDIC - International (500 + Euro symbol)
1149	IBM EBCDIC - Icelandic (20871 + Euro symbol)
1200	Unicode UCS-2 Little-Endian (BMP of ISO 10646)
1201	Unicode UCS-2 Big-Endian
1250	ANSI - Central European
1251	ANSI - Cyrillic
1252	ANSI - Latin I
1253	ANSI - Greek
1254	ANSI - Turkish
1255	ANSI - Hebrew
1256	ANSI - Arabic
1257	ANSI - Baltic
1258	ANSI/OEM - Vietnamese
1361	Korean (Johab)
10000	MAC - Roman
10001	MAC - Japanese
10002	MAC - Traditional Chinese (Big5)
10003	MAC - Korean
10004	MAC - Arabic
10005	MAC - Hebrew
10006	MAC - Greek I
10007	MAC - Cyrillic
10008	MAC - Simplified Chinese (GB 2312)
10010	MAC - Romania
10017	MAC - Ukraine
10021	MAC - Thai
10029	MAC - Latin II
10079	MAC - Icelandic
10081	MAC - Turkish
10082	MAC - Croatia
12000	Unicode UCS-4 Little-Endian
12001	Unicode UCS-4 Big-Endian
20000	CNS - Taiwan
20001	TCA - Taiwan
20002	Eten - Taiwan
20003	IBM5550 - Taiwan
20004	TeleText - Taiwan
20005	Wang - Taiwan
20105	IA5 IRV International Alphabet No. 5 (7-bit)
20106	IA5 German (7-bit)
20107	IA5 Swedish (7-bit)
20108	IA5 Norwegian (7-bit)
20127	US-ASCII (7-bit)
20261	T.61
20269	ISO 6937 Non-Spacing Accent
20273	IBM EBCDIC - Germany
20277	IBM EBCDIC - Denmark/Norway
20278	IBM EBCDIC - Finland/Sweden
20280	IBM EBCDIC - Italy
20284	IBM EBCDIC - Latin America/Spain
20285	IBM EBCDIC - United Kingdom
20290	IBM EBCDIC - Japanese Katakana Extended
20297	IBM EBCDIC - France
20420	IBM EBCDIC - Arabic
20423	IBM EBCDIC - Greek
20424	IBM EBCDIC - Hebrew
20833	IBM EBCDIC - Korean Extended
20838	IBM EBCDIC - Thai
20866	Russian - KOI8-R
20871	IBM EBCDIC - Icelandic
20880	IBM EBCDIC - Cyrillic (Russian)
20905	IBM EBCDIC - Turkish
20924	IBM EBCDIC - Latin-1/Open System (1047 + Euro symbol)
20932	JIS X 0208-1990 & 0121-1990
20936	Simplified Chinese (GB2312)
21025	IBM EBCDIC - Cyrillic (Serbian, Bulgarian)
21027	Extended Alpha Lowercase
21866	Ukrainian (KOI8-U)
28591	ISO 8859-1 Latin I
28592	ISO 8859-2 Central Europe
28593	ISO 8859-3 Latin 3
28594	ISO 8859-4 Baltic
28595	ISO 8859-5 Cyrillic
28596	ISO 8859-6 Arabic
28597	ISO 8859-7 Greek
28598	ISO 8859-8 Hebrew
28599	ISO 8859-9 Latin 5
28605	ISO 8859-15 Latin 9
29001	Europa 3
38598	ISO 8859-8 Hebrew
50220	ISO 2022 Japanese with no halfwidth Katakana
50221	ISO 2022 Japanese with halfwidth Katakana
50222	ISO 2022 Japanese JIS X 0201-1989
50225	ISO 2022 Korean
50227	ISO 2022 Simplified Chinese
50229	ISO 2022 Traditional Chinese
50930	Japanese (Katakana) Extended
50931	US/Canada and Japanese
50933	Korean Extended and Korean
50935	Simplified Chinese Extended and Simplified Chinese
50936	Simplified Chinese
50937	US/Canada and Traditional Chinese
50939	Japanese (Latin) Extended and Japanese
51932	EUC - Japanese
51936	EUC - Simplified Chinese
51949	EUC - Korean
51950	EUC - Traditional Chinese
52936	HZ-GB2312 Simplified Chinese
54936	Windows XP: GB18030 Simplified Chinese (4 Byte)
57002	ISCII Devanagari
57003	ISCII Bengali
57004	ISCII Tamil
57005	ISCII Telugu
57006	ISCII Assamese
57007	ISCII Oriya
57008	ISCII Kannada
57009	ISCII Malayalam
57010	ISCII Gujarati
57011	ISCII Punjabi
65000	Unicode UTF-7
65001	Unicode UTF-8

The following is a list of valid code page identifiers for Mac OS only:


Identifier	Name
1	ASCII
2	NEXTSTEP
3	JapaneseEUC
4	UTF8
5	ISOLatin1
6	Symbol
7	NonLossyASCII
8	ShiftJIS
9	ISOLatin2
10	Unicode
11	WindowsCP1251
12	WindowsCP1252
13	WindowsCP1253
14	WindowsCP1254
15	WindowsCP1250
21	ISO2022JP
30	MacOSRoman
10	UTF16String
0x90000100	UTF16BigEndian
0x94000100	UTF16LittleEndian
0x8c000100	UTF32String
0x98000100	UTF32BigEndian
0x9c000100	UTF32LittleEndian
65536	Proprietary

LicenseInfo: Information about the current license.

When queried, this setting will return a string containing information about the license this instance of a cmdlet is using. It will return the following information:

Product: The product the license is for.
Product Key: The key the license was generated from.
License Source: Where the license was found (e.g., RuntimeLicense, License File).
License Type: The type of license installed (e.g., Royalty Free, Single Server).
Last Valid Build: The last valid build number for which the license will work.

MaskSensitive: Whether sensitive data is masked in log messages.

In certain circumstances it may be beneficial to mask sensitive data, like passwords, in log messages. Set this to true to mask sensitive data. The default is true.

This setting only works on these cmdlets: AS3Receiver, AS3Sender, Atom, Client(3DS), FTP, FTPServer, IMAP, OFTPClient, SSHClient, SCP, Server(3DS), Sexec, SFTP, SFTPServer, SSHServer, TCPClient, TCPServer.

UseInternalSecurityAPI: Whether or not to use the system security libraries or an internal implementation.

When set to false, the cmdlet will use the system security libraries by default to perform cryptographic functions where applicable. In this case, calls to unmanaged code will be made. In certain environments, this is not desirable. To use a completely managed security implementation, set this setting to true.

Setting this configuration setting to true tells the cmdlet to use the internal implementation instead of using the system security libraries.

On Windows, this setting is set to false by default. On Linux/macOS, this setting is set to true by default.

If using the .NET Standard Library, this setting will be true on all platforms. The .NET Standard library does not support using the system security libraries.

Note: This setting is static. The value set is applicable to all cmdlets used in the application.

When this value is set, the product's system dynamic link library (DLL) is no longer required as a reference, as all unmanaged code is stored in that file.