SMTP Class

Properties   Methods   Events   Config Settings   Errors  

The SMTP Class is used to send Internet mail using the SMTP protocol (the Internet mail standard).

Syntax

SMTP

Remarks

The SMTP Class supports both plaintext and SSL/TLS connections (RFC 2487). When connecting over SSL/TLS the SSLServerAuthentication event allows you to check the server identity and other security attributes. The SSLStatus event provides information about the SSL handshake. Additional SSL related settings are also supported via the Config method.

The SMTP Class implements a standard SMTP client as specified in RFC 821. It has a simple plug-and-play interface. It contains a number of properties like SendTo, Subject, From, Cc, BCc, etc. that map directly to the internet mail message headers with the same name (RFC 822). The message text is set in MessageText. Messages are sent by calling the Send method.

The class supports message delivery to multiple recipients through the SendTo, Cc, and BCc properties. Simply specify the destination email addresses separated by commas.

The interface of the class is open-ended. New features, including MIME attachments can be supported by using the OtherHeaders property.

A number of events provide feedback during the operation of the class. The Transfer event is fired during message delivery to show the number of bytes delivered. The PITrail event traces the commands that are sent to the server and the respective replies.

Property List

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

Method List

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

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.

Config Settings

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

AllowExtensions Property (SMTP Class)

This property is a switch allowing the class to use ESMTP features (Extended SMTP).

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
int GetAllowExtensions();
int SetAllowExtensions(int bAllowExtensions);

Unicode (Windows)
BOOL GetAllowExtensions();
INT SetAllowExtensions(BOOL bAllowExtensions);

int ipworksssl_smtp_getallowextensions(void* lpObj);
int ipworksssl_smtp_setallowextensions(void* lpObj, int bAllowExtensions);

bool GetAllowExtensions();
int SetAllowExtensions(bool bAllowExtensions);

Default Value

TRUE

Remarks

This property is a switch allowing the class to use ESMTP features (Extended SMTP). If this property is True, the class will first send the EHLO greeting (Extended Hello) to the server and, if that fails, the standard HELO command will be sent.

This property is True by default but may be disabled if it is known in advance that the MailServer does not support SMTP extensions.

This property is not available at design time.

Data Type

Boolean

AuthMechanism Property (SMTP Class)

This property is used when connecting to the mail server.

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
int GetAuthMechanism();
int SetAuthMechanism(int iAuthMechanism);

Unicode (Windows)
INT GetAuthMechanism();
INT SetAuthMechanism(INT iAuthMechanism);

AM_USER_PASSWORD(0), 
AM_CRAMMD5(1), 
AM_NTLM(2), 
AM_APOP(3), 
AM_SASLPLAIN(4), 
AM_SASLDIGEST_MD5(5), 
AM_KERBEROS(6), 
AM_XOAUTH2(7)

int ipworksssl_smtp_getauthmechanism(void* lpObj);
int ipworksssl_smtp_setauthmechanism(void* lpObj, int iAuthMechanism);

int GetAuthMechanism();
int SetAuthMechanism(int iAuthMechanism);

Default Value

0

Remarks

This is the authentication mechanism property to be used when connecting to the mail server.

By default, this property is amUserPassword (0), and if the User and Password properties are set, the AUTH command is sent to the server for authentication. If this property is set to amCRAMMD5 (1), CRAM-MD5 authentication is used instead.

If this property is set to amNTLM (2), NTLM authentication will be used.

If this property is set to amKerberos (6), Kerberos authentication will be used.

Note: This functionality is available only in Windows.

When set to amXOAUTH2 (7), set User to the username and AuthorizationIdentity to the OAuth token. See AuthorizationIdentity for details.

Data Type

Integer

BCc Property (SMTP Class)

This property includes a comma-separated list of addresses for blind carbon copies (optional).

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
char* GetBCc();
int SetBCc(const char* lpszBCc);

Unicode (Windows)
LPWSTR GetBCc();
INT SetBCc(LPCWSTR lpszBCc);

char* ipworksssl_smtp_getbcc(void* lpObj);
int ipworksssl_smtp_setbcc(void* lpObj, const char* lpszBCc);

QString GetBCc();
int SetBCc(QString qsBCc);

Default Value

""

Remarks

This property 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. Because no BCc SMTP header is created containing the destination addresses, individual recipients never see the list of the other recipients.

The class will return an error if the MailServer returns an error code about any email address specified in SendTo or Cc but it will fire an Error event only if the same thing happens with an email address specified in this property.

If the resulting header is longer than MaxHeaderLength, then it is folded according to RFC 822 specifications.

Note: You must clear the MessageRecipients properties before setting this property to remove previous recipients.

Data Type

String

Cc Property (SMTP Class)

This property includes a comma-separated list of addresses for carbon copies (optional).

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
char* GetCc();
int SetCc(const char* lpszCc);

Unicode (Windows)
LPWSTR GetCc();
INT SetCc(LPCWSTR lpszCc);

char* ipworksssl_smtp_getcc(void* lpObj);
int ipworksssl_smtp_setcc(void* lpObj, const char* lpszCc);

QString GetCc();
int SetCc(QString qsCc);

Default Value

""

Remarks

This property 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 the BCc).

The class will return an error if the MailServer returns an error code about any email address specified in SendTo or Cc but it will fire an Error event only if the same thing happens with an email address specified in BCc.

If the resulting header is longer than MaxHeaderLength, then it is folded according to RFC 822 specifications.

Note: You must clear the MessageRecipients properties before setting this property to remove previous recipients.

Data Type

String

Command Property (SMTP Class)

This property is used to send additional commands directly to the server.

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
int SetCommand(const char* lpszCommand);

Unicode (Windows)
INT SetCommand(LPCWSTR lpszCommand);

int ipworksssl_smtp_setcommand(void* lpObj, const char* lpszCommand);

int SetCommand(QString qsCommand);

Default Value

""

Remarks

This property can be used to send additional commands directly to the server. Check the LastReply property or trap the PITrail events coming from the server to get the response.

This property is write-only and not available at design time.

Data Type

String

Connected Property (SMTP Class)

This shows whether the class is connected.

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
int GetConnected();
int SetConnected(int bConnected);

Unicode (Windows)
BOOL GetConnected();
INT SetConnected(BOOL bConnected);

int ipworksssl_smtp_getconnected(void* lpObj);
int ipworksssl_smtp_setconnected(void* lpObj, int bConnected);

bool GetConnected();
int SetConnected(bool bConnected);

Default Value

FALSE

Remarks

This property is used to determine whether or not the class is connected to the remote host.

Note: It is recommended to use the Connect or Disconnect method instead of setting this property.

This property is not available at design time.

Data Type

Boolean

DeliveryNotificationTo Property (SMTP Class)

This property includes the email address to which to send a delivery notification.

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
char* GetDeliveryNotificationTo();
int SetDeliveryNotificationTo(const char* lpszDeliveryNotificationTo);

Unicode (Windows)
LPWSTR GetDeliveryNotificationTo();
INT SetDeliveryNotificationTo(LPCWSTR lpszDeliveryNotificationTo);

char* ipworksssl_smtp_getdeliverynotificationto(void* lpObj);
int ipworksssl_smtp_setdeliverynotificationto(void* lpObj, const char* lpszDeliveryNotificationTo);

QString GetDeliveryNotificationTo();
int SetDeliveryNotificationTo(QString qsDeliveryNotificationTo);

Default Value

""

Remarks

This property contains the email address to send to which to send a delivery notification. When set, a Return-Receipt-To header is added to the message. This property should be set to an email address that can receive the delivery notification.

Data Type

String

FirewallAutoDetect Property (SMTP Class)

This property tells the class whether or not to automatically detect and use firewall system settings, if available.

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
int GetFirewallAutoDetect();
int SetFirewallAutoDetect(int bFirewallAutoDetect);

Unicode (Windows)
BOOL GetFirewallAutoDetect();
INT SetFirewallAutoDetect(BOOL bFirewallAutoDetect);

int ipworksssl_smtp_getfirewallautodetect(void* lpObj);
int ipworksssl_smtp_setfirewallautodetect(void* lpObj, int bFirewallAutoDetect);

bool GetFirewallAutoDetect();
int SetFirewallAutoDetect(bool bFirewallAutoDetect);

Default Value

FALSE

Remarks

This property tells the class whether or not to automatically detect and use firewall system settings, if available.

Data Type

Boolean

FirewallType Property (SMTP Class)

This property determines the type of firewall to connect through.

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
int GetFirewallType();
int SetFirewallType(int iFirewallType);

Unicode (Windows)
INT GetFirewallType();
INT SetFirewallType(INT iFirewallType);

FW_NONE(0), 
FW_TUNNEL(1), 
FW_SOCKS4(2), 
FW_SOCKS5(3), 
FW_SOCKS4A(10)

int ipworksssl_smtp_getfirewalltype(void* lpObj);
int ipworksssl_smtp_setfirewalltype(void* lpObj, int iFirewallType);

int GetFirewallType();
int SetFirewallType(int iFirewallType);

Default Value

0

Remarks

This property determines the type of firewall to connect through. The applicable values are as follows:

Data Type

Integer

FirewallHost Property (SMTP Class)

This property contains the name or IP address of firewall (optional).

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
char* GetFirewallHost();
int SetFirewallHost(const char* lpszFirewallHost);

Unicode (Windows)
LPWSTR GetFirewallHost();
INT SetFirewallHost(LPCWSTR lpszFirewallHost);

char* ipworksssl_smtp_getfirewallhost(void* lpObj);
int ipworksssl_smtp_setfirewallhost(void* lpObj, const char* lpszFirewallHost);

QString GetFirewallHost();
int SetFirewallHost(QString qsFirewallHost);

Default Value

""

Remarks

This property contains the name or IP address of firewall (optional). If a FirewallHost is given, the requested connections will be authenticated through the specified firewall when connecting.

If this property is set to a Domain Name, a DNS request is initiated. Upon successful termination of the request, this property is set to the corresponding address. If the search is not successful, the class fails with an error.

Data Type

String

FirewallPassword Property (SMTP Class)

This property contains a password if authentication is to be used when connecting through the firewall.

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
char* GetFirewallPassword();
int SetFirewallPassword(const char* lpszFirewallPassword);

Unicode (Windows)
LPWSTR GetFirewallPassword();
INT SetFirewallPassword(LPCWSTR lpszFirewallPassword);

char* ipworksssl_smtp_getfirewallpassword(void* lpObj);
int ipworksssl_smtp_setfirewallpassword(void* lpObj, const char* lpszFirewallPassword);

QString GetFirewallPassword();
int SetFirewallPassword(QString qsFirewallPassword);

Default Value

""

Remarks

This property contains a password if authentication is to be used when connecting through the firewall. If FirewallHost is specified, the FirewallUser and FirewallPassword properties are used to connect and authenticate to the given firewall. If the authentication fails, the class fails with an error.

Data Type

String

FirewallPort Property (SMTP Class)

This property contains the transmission control protocol (TCP) port for the firewall Host .

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
int GetFirewallPort();
int SetFirewallPort(int iFirewallPort);

Unicode (Windows)
INT GetFirewallPort();
INT SetFirewallPort(INT iFirewallPort);

int ipworksssl_smtp_getfirewallport(void* lpObj);
int ipworksssl_smtp_setfirewallport(void* lpObj, int iFirewallPort);

int GetFirewallPort();
int SetFirewallPort(int iFirewallPort);

Default Value

0

Remarks

This property contains the transmission control protocol (TCP) port for the firewall FirewallHost. See the description of the FirewallHost property for details.

Note: This property is set automatically when FirewallType is set to a valid value. See the description of the FirewallType property for details.

Data Type

Integer

FirewallUser Property (SMTP Class)

This property contains a user name if authentication is to be used connecting through a firewall.

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
char* GetFirewallUser();
int SetFirewallUser(const char* lpszFirewallUser);

Unicode (Windows)
LPWSTR GetFirewallUser();
INT SetFirewallUser(LPCWSTR lpszFirewallUser);

char* ipworksssl_smtp_getfirewalluser(void* lpObj);
int ipworksssl_smtp_setfirewalluser(void* lpObj, const char* lpszFirewallUser);

QString GetFirewallUser();
int SetFirewallUser(QString qsFirewallUser);

Default Value

""

Remarks

This property contains a user name if authentication is to be used connecting through a firewall. If the FirewallHost is specified, this property and FirewallPassword properties are used to connect and authenticate to the given Firewall. If the authentication fails, the class fails with an error.

Data Type

String

From Property (SMTP Class)

The email address of the sender (required).

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
char* GetFrom();
int SetFrom(const char* lpszFrom);

Unicode (Windows)
LPWSTR GetFrom();
INT SetFrom(LPCWSTR lpszFrom);

char* ipworksssl_smtp_getfrom(void* lpObj);
int ipworksssl_smtp_setfrom(void* lpObj, const char* lpszFrom);

QString GetFrom();
int SetFrom(QString qsFrom);

Default Value

""

Remarks

This property 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

If the resulting header is longer than MaxHeaderLength, then it is folded according to RFC 822 specifications.

Data Type

String

Idle Property (SMTP Class)

The current status of the class.

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
int GetIdle();

Unicode (Windows)
BOOL GetIdle();

int ipworksssl_smtp_getidle(void* lpObj);

bool GetIdle();

Default Value

TRUE

Remarks

Idle will be False if the component is currently busy (communicating and/or waiting for an answer), and True at all other times.

This property is read-only.

Data Type

Boolean

Importance Property (SMTP Class)

Importance of the mail message (optional).

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
int GetImportance();
int SetImportance(int iImportance);

Unicode (Windows)
INT GetImportance();
INT SetImportance(INT iImportance);

MI_UNSPECIFIED(0), 
MI_HIGH(1), 
MI_NORMAL(2), 
MI_LOW(3)

int ipworksssl_smtp_getimportance(void* lpObj);
int ipworksssl_smtp_setimportance(void* lpObj, int iImportance);

int GetImportance();
int SetImportance(int iImportance);

Default Value

0

Remarks

This property indicates the importance of the mail message (optional). When set, an Importance header will be added to the message.

Importance is an indication to the recipient(s) about how important the message is. The possible values are Unspecified (0), High (1), Normal (2), and Low (3).

Data Type

Integer

LastReply Property (SMTP Class)

The last reply from the server.

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
char* GetLastReply();

Unicode (Windows)
LPWSTR GetLastReply();

char* ipworksssl_smtp_getlastreply(void* lpObj);

QString GetLastReply();

Default Value

""

Remarks

This property indicates the last reply received from the server. It can be used for informational purposes. The same information and more can also be retrieved through the PITrail event.

This property is read-only.

Data Type

String

LocalHost Property (SMTP Class)

The name of the local host or user-assigned IP interface through which connections are initiated or accepted.

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
char* GetLocalHost();
int SetLocalHost(const char* lpszLocalHost);

Unicode (Windows)
LPWSTR GetLocalHost();
INT SetLocalHost(LPCWSTR lpszLocalHost);

char* ipworksssl_smtp_getlocalhost(void* lpObj);
int ipworksssl_smtp_setlocalhost(void* lpObj, const char* lpszLocalHost);

QString GetLocalHost();
int SetLocalHost(QString qsLocalHost);

Default Value

""

Remarks

The LocalHost property 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 class initiate connections (or accept in the case of server classs) only through that interface.

If the class is connected, the LocalHost property 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).

NOTE: LocalHost is not persistent. You must always set it in code, and never in the property window.

Data Type

String

MailPort Property (SMTP Class)

The server port for SMTP (default 25).

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
int GetMailPort();
int SetMailPort(int iMailPort);

Unicode (Windows)
INT GetMailPort();
INT SetMailPort(INT iMailPort);

int ipworksssl_smtp_getmailport(void* lpObj);
int ipworksssl_smtp_setmailport(void* lpObj, int iMailPort);

int GetMailPort();
int SetMailPort(int iMailPort);

Default Value

25

Remarks

This property contains the server port for SMTP (default 25). A valid port number (a value between 1 and 65535) is required for the connection to take place. The property must be set before a connection is attempted and cannot be changed once a connection is established. Any attempt to change this property while connected will fail with an error.

For implicit SSL, use port 465 (please refer to the SSLStartMode property for more information).

This property is not available at design time.

Data Type

Integer

MailServer Property (SMTP Class)

The name or address of a mail server (mail relay).

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
char* GetMailServer();
int SetMailServer(const char* lpszMailServer);

Unicode (Windows)
LPWSTR GetMailServer();
INT SetMailServer(LPCWSTR lpszMailServer);

char* ipworksssl_smtp_getmailserver(void* lpObj);
int ipworksssl_smtp_setmailserver(void* lpObj, const char* lpszMailServer);

QString GetMailServer();
int SetMailServer(QString qsMailServer);

Default Value

""

Remarks

This property specifies the IP address (IP number in dotted internet format) or Domain Name for a mail relay through which messages will be routed. It is set before a connection is attempted and cannot be changed once a connection is in progress.

The current version of the class does not provide a default value for the mail relay. You must provide a host name yourself. Generally, any internet host with an SMTP server will suffice (a UNIX host for example), but it is preferable to select a MailServer that is close to the machine sending mail.

If this property is set to a Domain Name, a DNS request is initiated and upon successful termination of the request, this property is set to the corresponding address. If the search is not successful, an error is returned.

If the class is configured to use a SOCKS firewall, the value assigned to this property may be preceded with an "*". If this is the case, the host name is passed to the firewall unresolved and the firewall performs the DNS resolution.

Data Type

String

Message Property (SMTP Class)

Provides a way to set the raw message content.

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
int GetMessage(char* &lpMessage, int &lenMessage);
int SetMessage(const char* lpMessage, int lenMessage);

Unicode (Windows)
INT GetMessage(LPSTR &lpMessage, INT &lenMessage);
INT SetMessage(LPCSTR lpMessage, INT lenMessage);

int ipworksssl_smtp_getmessage(void* lpObj, char** lpMessage, int* lenMessage);
int ipworksssl_smtp_setmessage(void* lpObj, const char* lpMessage, int lenMessage);

QByteArray GetMessage();
int SetMessage(QByteArray qbaMessage);

Default Value

""

Remarks

This property may be set instead of MessageText. The value set here will not be modified in any way by the class and will be sent as is. Use caution when setting this value as all encoding must be done before supplying the value to the component.

This property is not available at design time.

Data Type

Binary String

MessageDate Property (SMTP Class)

Date of the mail message (optional).

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
char* GetMessageDate();
int SetMessageDate(const char* lpszMessageDate);

Unicode (Windows)
LPWSTR GetMessageDate();
INT SetMessageDate(LPCWSTR lpszMessageDate);

char* ipworksssl_smtp_getmessagedate(void* lpObj);
int ipworksssl_smtp_setmessagedate(void* lpObj, const char* lpszMessageDate);

QString GetMessageDate();
int SetMessageDate(QString qsMessageDate);

Default Value

"*"

Remarks

If this property contains a non-empty string, then a Date SMTP header is created and attached to the message. If it is an empty string, then the date information is added by the mail relay(s) the message goes through.

Special case: if this property is set to the special value "*", a Date SMTP header reflecting the current date and time is generated when MessageHeaders is computed and the message is sent. This is the default behavior of the class

RFC 822 contains detailed date format specifications. An example of a valid date is "Fri, 1 Mar 96 21:24:52 EST".

This property is not available at design time.

Data Type

String

MessageHeaderCount Property (SMTP Class)

The number of records in the MessageHeader arrays.

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
int GetMessageHeaderCount();

Unicode (Windows)
INT GetMessageHeaderCount();

int ipworksssl_smtp_getmessageheadercount(void* lpObj);

int GetMessageHeaderCount();

Default Value

0

Remarks

This property controls the size of the following arrays:

• MessageHeaderField
• MessageHeaderValue

The array indices start at 0 and end at MessageHeaderCount - 1.

This property is read-only and not available at design time.

Data Type

Integer

MessageHeaderField Property (SMTP Class)

This property contains the name of the HTTP header (this is the same case as it is delivered).

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
char* GetMessageHeaderField(int iMessageHeaderIndex);

Unicode (Windows)
LPWSTR GetMessageHeaderField(INT iMessageHeaderIndex);

char* ipworksssl_smtp_getmessageheaderfield(void* lpObj, int messageheaderindex);

QString GetMessageHeaderField(int iMessageHeaderIndex);

Default Value

""

Remarks

This property contains the name of the HTTP Header (this is the same case as it is delivered).

The MessageHeaderIndex parameter specifies the index of the item in the array. The size of the array is controlled by the MessageHeaderCount property.

This property is read-only and not available at design time.

Data Type

String

MessageHeaderValue Property (SMTP Class)

This property contains the header contents.

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
char* GetMessageHeaderValue(int iMessageHeaderIndex);

Unicode (Windows)
LPWSTR GetMessageHeaderValue(INT iMessageHeaderIndex);

char* ipworksssl_smtp_getmessageheadervalue(void* lpObj, int messageheaderindex);

QString GetMessageHeaderValue(int iMessageHeaderIndex);

Default Value

""

Remarks

This property contains the Header contents.

The MessageHeaderIndex parameter specifies the index of the item in the array. The size of the array is controlled by the MessageHeaderCount property.

This property is read-only and not available at design time.

Data Type

String

MessageHeadersString Property (SMTP Class)

String representation of RFC822-encoded headers of the message.

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
char* GetMessageHeadersString();

Unicode (Windows)
LPWSTR GetMessageHeadersString();

char* ipworksssl_smtp_getmessageheadersstring(void* lpObj);

QString GetMessageHeadersString();

Default Value

""

Remarks

This property holds the full headers of the message in RFC822 format.

This property is read-only.

Data Type

String

MessageId Property (SMTP Class)

The Message Identifier for the message.

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
char* GetMessageId();
int SetMessageId(const char* lpszMessageId);

Unicode (Windows)
LPWSTR GetMessageId();
INT SetMessageId(LPCWSTR lpszMessageId);

char* ipworksssl_smtp_getmessageid(void* lpObj);
int ipworksssl_smtp_setmessageid(void* lpObj, const char* lpszMessageId);

QString GetMessageId();
int SetMessageId(QString qsMessageId);

Default Value

"*"

Remarks

This property contains the Message Identifier for the message. When set, the value of MessageId is used as the Message-ID header value of the message. A special value of "*" will automatically generate a random unique identifier for the message.

This property is not available at design time.

Data Type

String

MessageRecipientCount Property (SMTP Class)

The number of records in the MessageRecipient arrays.

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
int GetMessageRecipientCount();
int SetMessageRecipientCount(int iMessageRecipientCount);

Unicode (Windows)
INT GetMessageRecipientCount();
INT SetMessageRecipientCount(INT iMessageRecipientCount);

int ipworksssl_smtp_getmessagerecipientcount(void* lpObj);
int ipworksssl_smtp_setmessagerecipientcount(void* lpObj, int iMessageRecipientCount);

int GetMessageRecipientCount();
int SetMessageRecipientCount(int iMessageRecipientCount);

Default Value

0

Remarks

This property controls the size of the following arrays:

• MessageRecipientAddress
• MessageRecipientName
• MessageRecipientOptions
• MessageRecipientType

The array indices start at 0 and end at MessageRecipientCount - 1.

This property is not available at design time.

Data Type

Integer

MessageRecipientAddress Property (SMTP Class)

This property contains the email address of the recipient.

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
char* GetMessageRecipientAddress(int iRecipientIndex);
int SetMessageRecipientAddress(int iRecipientIndex, const char* lpszMessageRecipientAddress);

Unicode (Windows)
LPWSTR GetMessageRecipientAddress(INT iRecipientIndex);
INT SetMessageRecipientAddress(INT iRecipientIndex, LPCWSTR lpszMessageRecipientAddress);

char* ipworksssl_smtp_getmessagerecipientaddress(void* lpObj, int recipientindex);
int ipworksssl_smtp_setmessagerecipientaddress(void* lpObj, int recipientindex, const char* lpszMessageRecipientAddress);

QString GetMessageRecipientAddress(int iRecipientIndex);
int SetMessageRecipientAddress(int iRecipientIndex, QString qsMessageRecipientAddress);

Default Value

""

Remarks

This property contains the email address of the recipient.

The RecipientIndex parameter specifies the index of the item in the array. The size of the array is controlled by the MessageRecipientCount property.

This property is not available at design time.

Data Type

String

MessageRecipientName Property (SMTP Class)

This property contains the name of the recipient.

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
char* GetMessageRecipientName(int iRecipientIndex);
int SetMessageRecipientName(int iRecipientIndex, const char* lpszMessageRecipientName);

Unicode (Windows)
LPWSTR GetMessageRecipientName(INT iRecipientIndex);
INT SetMessageRecipientName(INT iRecipientIndex, LPCWSTR lpszMessageRecipientName);

char* ipworksssl_smtp_getmessagerecipientname(void* lpObj, int recipientindex);
int ipworksssl_smtp_setmessagerecipientname(void* lpObj, int recipientindex, const char* lpszMessageRecipientName);

QString GetMessageRecipientName(int iRecipientIndex);
int SetMessageRecipientName(int iRecipientIndex, QString qsMessageRecipientName);

Default Value

""

Remarks

This property contains the name of the recipient.

The RecipientIndex parameter specifies the index of the item in the array. The size of the array is controlled by the MessageRecipientCount property.

This property is not available at design time.

Data Type

String

MessageRecipientOptions Property (SMTP Class)

This property contains the recipient sending options (used only by SMTP).

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
char* GetMessageRecipientOptions(int iRecipientIndex);
int SetMessageRecipientOptions(int iRecipientIndex, const char* lpszMessageRecipientOptions);

Unicode (Windows)
LPWSTR GetMessageRecipientOptions(INT iRecipientIndex);
INT SetMessageRecipientOptions(INT iRecipientIndex, LPCWSTR lpszMessageRecipientOptions);

char* ipworksssl_smtp_getmessagerecipientoptions(void* lpObj, int recipientindex);
int ipworksssl_smtp_setmessagerecipientoptions(void* lpObj, int recipientindex, const char* lpszMessageRecipientOptions);

QString GetMessageRecipientOptions(int iRecipientIndex);
int SetMessageRecipientOptions(int iRecipientIndex, QString qsMessageRecipientOptions);

Default Value

""

Remarks

This property contains the recipient sending options (used only by SMTP). This must be a string of RFC-compliant recipient options (used by SMTP).

One type of option is a delivery status notification sent per recipient, which is specified by RFC 1891.

component.MessageRecipientOptions(0) = "NOTIFY SUCCESS,FAILURE,DELAY";

The RecipientIndex parameter specifies the index of the item in the array. The size of the array is controlled by the MessageRecipientCount property.

This property is not available at design time.

Data Type

String

MessageRecipientType Property (SMTP Class)

This property contains the recipient type: To, Cc, or Bcc.

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
int GetMessageRecipientType(int iRecipientIndex);
int SetMessageRecipientType(int iRecipientIndex, int iMessageRecipientType);

Unicode (Windows)
INT GetMessageRecipientType(INT iRecipientIndex);
INT SetMessageRecipientType(INT iRecipientIndex, INT iMessageRecipientType);

RT_TO(0), 
RT_CC(1), 
RT_BCC(2)

int ipworksssl_smtp_getmessagerecipienttype(void* lpObj, int recipientindex);
int ipworksssl_smtp_setmessagerecipienttype(void* lpObj, int recipientindex, int iMessageRecipientType);

int GetMessageRecipientType(int iRecipientIndex);
int SetMessageRecipientType(int iRecipientIndex, int iMessageRecipientType);

Default Value

0

Remarks

This property contains the recipient type: To, Cc, or Bcc.

The RecipientIndex parameter specifies the index of the item in the array. The size of the array is controlled by the MessageRecipientCount property.

This property is not available at design time.

Data Type

Integer

MessageText Property (SMTP Class)

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

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
char* GetMessageText();
int SetMessageText(const char* lpszMessageText);

Unicode (Windows)
LPWSTR GetMessageText();
INT SetMessageText(LPCWSTR lpszMessageText);

char* ipworksssl_smtp_getmessagetext(void* lpObj);
int ipworksssl_smtp_setmessagetext(void* lpObj, const char* lpszMessageText);

QString GetMessageText();
int SetMessageText(QString qsMessageText);

Default Value

""

Remarks

This property contains the full text of the message.

It is advisable that the text contained in this property be a collection of lines with lengths less than or equal to 80 bytes separated by CRLF ("\r\n") . 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 class 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.

Data Type

String

OtherHeaders Property (SMTP Class)

An RFC 822 compliant string consisting of extra headers.

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
char* GetOtherHeaders();
int SetOtherHeaders(const char* lpszOtherHeaders);

Unicode (Windows)
LPWSTR GetOtherHeaders();
INT SetOtherHeaders(LPCWSTR lpszOtherHeaders);

char* ipworksssl_smtp_getotherheaders(void* lpObj);
int ipworksssl_smtp_setotherheaders(void* lpObj, const char* lpszOtherHeaders);

QString GetOtherHeaders();
int SetOtherHeaders(QString qsOtherHeaders);

Default Value

""

Remarks

This property contains a string of headers to be appended to the message headers created from other properties like SendTo, Subject, etc.

The headers must be of the format "header: value" as specified in RFC 822. Header lines should be separated by CRLF ("\r\n") .

Use this property with caution. If this property contains invalid headers, message delivery might not be successful.

This property is useful for extending the functionality of the class. A good example is delivery of MIME encoded messages.

SPECIAL CASE: if this property starts with an empty line (CRLF), then the value of this property is used instead of the normally computed message headers.

Example (Send an Email With Additional Header)

component.MailServer = "MyServer"; component.From = "me@server.com"; component.SendTo = "recipient@server.com"; component.Subject = "My Subject"; component.MessageText = "This is the message body."; component.OtherHeaders = "HeaderName: HeaderValue"; component.Send();

This property is not available at design time.

Data Type

String

Password Property (SMTP Class)

A password for logon to the MailServer .

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
char* GetPassword();
int SetPassword(const char* lpszPassword);

Unicode (Windows)
LPWSTR GetPassword();
INT SetPassword(LPCWSTR lpszPassword);

char* ipworksssl_smtp_getpassword(void* lpObj);
int ipworksssl_smtp_setpassword(void* lpObj, const char* lpszPassword);

QString GetPassword();
int SetPassword(QString qsPassword);

Default Value

""

Remarks

If this property is set to a non-empty string, then when connecting to the MailServer an AUTH or CRAM-MD5 (depending on the value of AuthMechanism) command is sent in order to provide authentication information for the user.

This property is not available at design time.

Data Type

String

Priority Property (SMTP Class)

Priority of the mail message (optional).

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
int GetPriority();
int SetPriority(int iPriority);

Unicode (Windows)
INT GetPriority();
INT SetPriority(INT iPriority);

EP_UNSPECIFIED(0), 
EP_NORMAL(1), 
EP_URGENT(2), 
EP_NON_URGENT(3)

int ipworksssl_smtp_getpriority(void* lpObj);
int ipworksssl_smtp_setpriority(void* lpObj, int iPriority);

int GetPriority();
int SetPriority(int iPriority);

Default Value

0

Remarks

When this property is set, a Priority header will be added to the message. Priority is an indication about the delivery priority of the message. The possible values are epNormal, epUrgent, and epNonUrgent.

Data Type

Integer

ReadReceiptTo Property (SMTP Class)

Email address to send a read receipt to.

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
char* GetReadReceiptTo();
int SetReadReceiptTo(const char* lpszReadReceiptTo);

Unicode (Windows)
LPWSTR GetReadReceiptTo();
INT SetReadReceiptTo(LPCWSTR lpszReadReceiptTo);

char* ipworksssl_smtp_getreadreceiptto(void* lpObj);
int ipworksssl_smtp_setreadreceiptto(void* lpObj, const char* lpszReadReceiptTo);

QString GetReadReceiptTo();
int SetReadReceiptTo(QString qsReadReceiptTo);

Default Value

""

Remarks

When this property is set, a Disposition-Notification-To header is added to the message. This property should be set to an email address which should receive the read-receipt.

Data Type

String

ReplyTo Property (SMTP Class)

A mail address to which to reply (optional).

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
char* GetReplyTo();
int SetReplyTo(const char* lpszReplyTo);

Unicode (Windows)
LPWSTR GetReplyTo();
INT SetReplyTo(LPCWSTR lpszReplyTo);

char* ipworksssl_smtp_getreplyto(void* lpObj);
int ipworksssl_smtp_setreplyto(void* lpObj, const char* lpszReplyTo);

QString GetReplyTo();
int SetReplyTo(QString qsReplyTo);

Default Value

""

Remarks

If this property contains a non-empty string, a Reply-To SMTP header is created for the message. This header shows the address to use for replies (useful if this address is different from the one in From).

If the resulting header is longer than MaxHeaderLength, then it is folded according to RFC 822 specifications.

Data Type

String

ReturnPath Property (SMTP Class)

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

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
char* GetReturnPath();
int SetReturnPath(const char* lpszReturnPath);

Unicode (Windows)
LPWSTR GetReturnPath();
INT SetReturnPath(LPCWSTR lpszReturnPath);

char* ipworksssl_smtp_getreturnpath(void* lpObj);
int ipworksssl_smtp_setreturnpath(void* lpObj, const char* lpszReturnPath);

QString GetReturnPath();
int SetReturnPath(QString qsReturnPath);

Default Value

""

Remarks

Setting this property sets the Return-Path to be used for sending email. If this is not set, the value in the From property is used.

Data Type

String

SendTo Property (SMTP Class)

A comma separated list of addresses for destinations (required).

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
char* GetSendTo();
int SetSendTo(const char* lpszSendTo);

Unicode (Windows)
LPWSTR GetSendTo();
INT SetSendTo(LPCWSTR lpszSendTo);

char* ipworksssl_smtp_getsendto(void* lpObj);
int ipworksssl_smtp_setsendto(void* lpObj, const char* lpszSendTo);

QString GetSendTo();
int SetSendTo(QString qsSendTo);

Default Value

""

Remarks

This property 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

The class will fail if the MailServer returns an error code about any email address specified in SendTo or Cc but it will silently ignore the error if the same happens with an email address specified in BCc.

If the resulting header is longer than MaxHeaderLength, then it is folded according to RFC 822 specifications.

NOTE: You must clear the MessageRecipients properties before setting this property to remove previous recipients.

Data Type

String

Sensitivity Property (SMTP Class)

Sensitivity of the mail message (optional).

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
int GetSensitivity();
int SetSensitivity(int iSensitivity);

Unicode (Windows)
INT GetSensitivity();
INT SetSensitivity(INT iSensitivity);

ES_UNSPECIFIED(0), 
ES_PERSONAL(1), 
ES_PRIVATE(2), 
ES_COMPANY_CONFIDENTIAL(3)

int ipworksssl_smtp_getsensitivity(void* lpObj);
int ipworksssl_smtp_setsensitivity(void* lpObj, int iSensitivity);

int GetSensitivity();
int SetSensitivity(int iSensitivity);

Default Value

0

Remarks

This property is an indication of how sensitive it is to disclose the message to people other than the recipients of the message. When set, a Sensitivity header will added to the message. Possible values are: esPersonal (1), esPrivate (2), and esCompanyConfidential (3).

Data Type

Integer

SSLAcceptServerCertEncoded Property (SMTP Class)

This is the certificate (PEM/base64 encoded).

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
int GetSSLAcceptServerCertEncoded(char* &lpSSLAcceptServerCertEncoded, int &lenSSLAcceptServerCertEncoded);
int SetSSLAcceptServerCertEncoded(const char* lpSSLAcceptServerCertEncoded, int lenSSLAcceptServerCertEncoded);

Unicode (Windows)
INT GetSSLAcceptServerCertEncoded(LPSTR &lpSSLAcceptServerCertEncoded, INT &lenSSLAcceptServerCertEncoded);
INT SetSSLAcceptServerCertEncoded(LPCSTR lpSSLAcceptServerCertEncoded, INT lenSSLAcceptServerCertEncoded);

int ipworksssl_smtp_getsslacceptservercertencoded(void* lpObj, char** lpSSLAcceptServerCertEncoded, int* lenSSLAcceptServerCertEncoded);
int ipworksssl_smtp_setsslacceptservercertencoded(void* lpObj, const char* lpSSLAcceptServerCertEncoded, int lenSSLAcceptServerCertEncoded);

QByteArray GetSSLAcceptServerCertEncoded();
int SetSSLAcceptServerCertEncoded(QByteArray qbaSSLAcceptServerCertEncoded);

Default Value

""

Remarks

This is the certificate (PEM/Base64 encoded). This property is used to assign a specific certificate. The SSLAcceptServerCertStore and SSLAcceptServerCertSubject properties also may be used to specify a certificate.

When SSLAcceptServerCertEncoded is set, a search is initiated in the current SSLAcceptServerCertStore for the private key of the certificate. If the key is found, SSLAcceptServerCertSubject is updated to reflect the full subject of the selected certificate; otherwise, SSLAcceptServerCertSubject is set to an empty string.

This property is not available at design time.

Data Type

Binary String

SSLCertEncoded Property (SMTP Class)

This is the certificate (PEM/base64 encoded).

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
int GetSSLCertEncoded(char* &lpSSLCertEncoded, int &lenSSLCertEncoded);
int SetSSLCertEncoded(const char* lpSSLCertEncoded, int lenSSLCertEncoded);

Unicode (Windows)
INT GetSSLCertEncoded(LPSTR &lpSSLCertEncoded, INT &lenSSLCertEncoded);
INT SetSSLCertEncoded(LPCSTR lpSSLCertEncoded, INT lenSSLCertEncoded);

int ipworksssl_smtp_getsslcertencoded(void* lpObj, char** lpSSLCertEncoded, int* lenSSLCertEncoded);
int ipworksssl_smtp_setsslcertencoded(void* lpObj, const char* lpSSLCertEncoded, int lenSSLCertEncoded);

QByteArray GetSSLCertEncoded();
int SetSSLCertEncoded(QByteArray qbaSSLCertEncoded);

Default Value

""

Remarks

This is the certificate (PEM/Base64 encoded). This property is used to assign a specific certificate. The SSLCertStore and SSLCertSubject properties also may be used to specify a certificate.

When SSLCertEncoded is set, a search is initiated in the current SSLCertStore for the private key of the certificate. If the key is found, SSLCertSubject is updated to reflect the full subject of the selected certificate; otherwise, SSLCertSubject is set to an empty string.

This property is not available at design time.

Data Type

Binary String

SSLCertStore Property (SMTP Class)

This is the name of the certificate store for the client certificate.

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
int GetSSLCertStore(char* &lpSSLCertStore, int &lenSSLCertStore);
int SetSSLCertStore(const char* lpSSLCertStore, int lenSSLCertStore);

Unicode (Windows)
INT GetSSLCertStore(LPSTR &lpSSLCertStore, INT &lenSSLCertStore);
INT SetSSLCertStore(LPCSTR lpSSLCertStore, INT lenSSLCertStore);

int ipworksssl_smtp_getsslcertstore(void* lpObj, char** lpSSLCertStore, int* lenSSLCertStore);
int ipworksssl_smtp_setsslcertstore(void* lpObj, const char* lpSSLCertStore, int lenSSLCertStore);

QByteArray GetSSLCertStore();
int SetSSLCertStore(QByteArray qbaSSLCertStore);

Default Value

"MY"

Remarks

This is the name of the certificate store for the client certificate.

The SSLCertStoreType property denotes the type of the certificate store specified by SSLCertStore. If the store is password protected, specify the password in SSLCertStorePassword.

SSLCertStore is used in conjunction with the SSLCertSubject property to specify client certificates. If SSLCertStore has a value, and SSLCertSubject or SSLCertEncoded is set, a search for a certificate is initiated. Please see the SSLCertSubject property for details.

Designations of certificate stores are platform dependent.

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

When the certificate store type is PFXFile, this property must be set to the name of the file. When the type is PFXBlob, the property must be set to the binary contents of a PFX file (i.e., PKCS#12 certificate store).

Data Type

Binary String

SSLCertStorePassword Property (SMTP Class)

If the type of certificate store requires a password, this property is used to specify the password needed to open the certificate store.

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
char* GetSSLCertStorePassword();
int SetSSLCertStorePassword(const char* lpszSSLCertStorePassword);

Unicode (Windows)
LPWSTR GetSSLCertStorePassword();
INT SetSSLCertStorePassword(LPCWSTR lpszSSLCertStorePassword);

char* ipworksssl_smtp_getsslcertstorepassword(void* lpObj);
int ipworksssl_smtp_setsslcertstorepassword(void* lpObj, const char* lpszSSLCertStorePassword);

QString GetSSLCertStorePassword();
int SetSSLCertStorePassword(QString qsSSLCertStorePassword);

Default Value

""

Remarks

If the type of certificate store requires a password, this property is used to specify the password needed to open the certificate store.

Data Type

String

SSLCertStoreType Property (SMTP Class)

This is the type of certificate store for this certificate.

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
int GetSSLCertStoreType();
int SetSSLCertStoreType(int iSSLCertStoreType);

Unicode (Windows)
INT GetSSLCertStoreType();
INT SetSSLCertStoreType(INT iSSLCertStoreType);

CST_USER(0), 
CST_MACHINE(1), 
CST_PFXFILE(2), 
CST_PFXBLOB(3), 
CST_JKSFILE(4), 
CST_JKSBLOB(5), 
CST_PEMKEY_FILE(6), 
CST_PEMKEY_BLOB(7), 
CST_PUBLIC_KEY_FILE(8), 
CST_PUBLIC_KEY_BLOB(9), 
CST_SSHPUBLIC_KEY_BLOB(10), 
CST_P7BFILE(11), 
CST_P7BBLOB(12), 
CST_SSHPUBLIC_KEY_FILE(13), 
CST_PPKFILE(14), 
CST_PPKBLOB(15), 
CST_XMLFILE(16), 
CST_XMLBLOB(17), 
CST_JWKFILE(18), 
CST_JWKBLOB(19), 
CST_SECURITY_KEY(20), 
CST_BCFKSFILE(21), 
CST_BCFKSBLOB(22), 
CST_PKCS11(23), 
CST_AUTO(99)

int ipworksssl_smtp_getsslcertstoretype(void* lpObj);
int ipworksssl_smtp_setsslcertstoretype(void* lpObj, int iSSLCertStoreType);

int GetSSLCertStoreType();
int SetSSLCertStoreType(int iSSLCertStoreType);

Default Value

0

Remarks

This is the type of certificate store for this certificate.

The class supports both public and private keys in a variety of formats. When the cstAuto value is used, the class will automatically determine the type. This property can take one of the following values:

Data Type

Integer

SSLCertSubject Property (SMTP Class)

This is the subject of the certificate used for client authentication.

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
char* GetSSLCertSubject();
int SetSSLCertSubject(const char* lpszSSLCertSubject);

Unicode (Windows)
LPWSTR GetSSLCertSubject();
INT SetSSLCertSubject(LPCWSTR lpszSSLCertSubject);

char* ipworksssl_smtp_getsslcertsubject(void* lpObj);
int ipworksssl_smtp_setsslcertsubject(void* lpObj, const char* lpszSSLCertSubject);

QString GetSSLCertSubject();
int SetSSLCertSubject(QString qsSSLCertSubject);

Default Value

""

Remarks

This is the subject of the certificate used for client authentication.

This property must be set after all other certificate properties are set. When this property is set, a search is performed in the current certificate store to locate a certificate with a matching subject.

If a matching certificate is found, the property is set to the full subject of the matching certificate.

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

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

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

The certificate subject is a comma-separated list of distinguished name fields and values. For instance, "CN=www.server.com, OU=test, C=US, E=support@nsoftware.com". Common fields and their meanings are as follows:

If a field value contains a comma, it must be quoted.

Data Type

String

SSLProvider Property (SMTP Class)

This specifies the SSL/TLS implementation to use.

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
int GetSSLProvider();
int SetSSLProvider(int iSSLProvider);

Unicode (Windows)
INT GetSSLProvider();
INT SetSSLProvider(INT iSSLProvider);

SSLP_AUTOMATIC(0), 
SSLP_PLATFORM(1), 
SSLP_INTERNAL(2)

int ipworksssl_smtp_getsslprovider(void* lpObj);
int ipworksssl_smtp_setsslprovider(void* lpObj, int iSSLProvider);

int GetSSLProvider();
int SetSSLProvider(int iSSLProvider);

Default Value

0

Remarks

This property specifies the SSL/TLS implementation to use. In most cases the default value of 0 (Automatic) is recommended and should not be changed. When set to 0 (Automatic) the class will select whether to use the platform implementation or the internal implementation depending on the operating system as well as the TLS version being used.

Possible values are:

In most cases using the default value (Automatic) is recommended. The class will select a provider depending on the current platform.

When Automatic is selected, on Windows the class will use the platform implementation. On Linux/macOS the class will use the internal implementation. When TLS 1.3 is enabled via SSLEnabledProtocols the internal implementation is used on all platforms.

Data Type

Integer

SSLServerCertEncoded Property (SMTP Class)

This is the certificate (PEM/base64 encoded).

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
int GetSSLServerCertEncoded(char* &lpSSLServerCertEncoded, int &lenSSLServerCertEncoded);

Unicode (Windows)
INT GetSSLServerCertEncoded(LPSTR &lpSSLServerCertEncoded, INT &lenSSLServerCertEncoded);

int ipworksssl_smtp_getsslservercertencoded(void* lpObj, char** lpSSLServerCertEncoded, int* lenSSLServerCertEncoded);

QByteArray GetSSLServerCertEncoded();

Default Value

""

Remarks

This is the certificate (PEM/Base64 encoded). This property is used to assign a specific certificate. The SSLServerCertStore and SSLServerCertSubject properties also may be used to specify a certificate.

When SSLServerCertEncoded is set, a search is initiated in the current SSLServerCertStore for the private key of the certificate. If the key is found, SSLServerCertSubject is updated to reflect the full subject of the selected certificate; otherwise, SSLServerCertSubject is set to an empty string.

This property is read-only and not available at design time.

Data Type

Binary String

SSLStartMode Property (SMTP Class)

Determines how the class starts the SSL negotiation.

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
int GetSSLStartMode();
int SetSSLStartMode(int iSSLStartMode);

Unicode (Windows)
INT GetSSLStartMode();
INT SetSSLStartMode(INT iSSLStartMode);

SSL_AUTOMATIC(0), 
SSL_IMPLICIT(1), 
SSL_EXPLICIT(2)

int ipworksssl_smtp_getsslstartmode(void* lpObj);
int ipworksssl_smtp_setsslstartmode(void* lpObj, int iSSLStartMode);

int GetSSLStartMode();
int SetSSLStartMode(int iSSLStartMode);

Default Value

0

Remarks

The SSLStartMode property may have one of the following values:

Data Type

Integer

Subject Property (SMTP Class)

The subject of the mail message (optional).

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
char* GetSubject();
int SetSubject(const char* lpszSubject);

Unicode (Windows)
LPWSTR GetSubject();
INT SetSubject(LPCWSTR lpszSubject);

char* ipworksssl_smtp_getsubject(void* lpObj);
int ipworksssl_smtp_setsubject(void* lpObj, const char* lpszSubject);

QString GetSubject();
int SetSubject(QString qsSubject);

Default Value

""

Remarks

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

If the resulting header is longer than MaxHeaderLength, then it is folded according to RFC 822 specifications.

Data Type

String

Timeout Property (SMTP Class)

A timeout for the class.

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
int GetTimeout();
int SetTimeout(int iTimeout);

Unicode (Windows)
INT GetTimeout();
INT SetTimeout(INT iTimeout);

int ipworksssl_smtp_gettimeout(void* lpObj);
int ipworksssl_smtp_settimeout(void* lpObj, int iTimeout);

int GetTimeout();
int SetTimeout(int iTimeout);

Default Value

60

Remarks

If the Timeout property is set to 0, all operations will run uninterrupted until successful completion or an error condition is encountered.

If Timeout is set to a positive value, the class will wait for the operation to complete before returning control.

The class will use DoEvents to enter an efficient wait loop during any potential waiting period, making sure that all system events are processed immediately as they arrive. This ensures that the host application does not "freeze" and remains responsive.

If Timeout expires, and the operation is not yet complete, the class fails with an error.

Please note that by default, all timeouts are inactivity timeouts, i.e. the timeout period is extended by Timeout seconds when any amount of data is successfully sent or received.

The default value for the Timeout property is 60 seconds.

Data Type

Integer

User Property (SMTP Class)

A user identifier to login as in the MailServer .

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
char* GetUser();
int SetUser(const char* lpszUser);

Unicode (Windows)
LPWSTR GetUser();
INT SetUser(LPCWSTR lpszUser);

char* ipworksssl_smtp_getuser(void* lpObj);
int ipworksssl_smtp_setuser(void* lpObj, const char* lpszUser);

QString GetUser();
int SetUser(QString qsUser);

Default Value

""

Remarks

If this property is set to a non-empty string, then when connecting to the MailServer an AUTH or CRAM-MD5 (depending on the value of AuthMechanism) command is sent in order to provide authentication information for the user.

This property is not available at design time.

Data Type

String

Config Method (SMTP Class)

Sets or retrieves a configuration setting.

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
char* Config(const char* lpszConfigurationString);

Unicode (Windows)
LPWSTR Config(LPCWSTR lpszConfigurationString);

char* ipworksssl_smtp_config(void* lpObj, const char* lpszConfigurationString);

QString Config(const QString& qsConfigurationString);

Remarks

Config is a generic method available in every class. It is used to set and retrieve configuration 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, you must call Config("PROPERTY"). The value will be returned as a string.

Error Handling (C++)

This method returns a String value; after it returns, call the GetLastErrorCode() method to obtain its result code; 0 indicates success, while a non-zero error code indicates that this method encountered an error during its execution. If an error occurs, the GetLastError() method can be called to retrieve the associated error message.

Connect Method (SMTP Class)

This method connects to the mail relay and sends the SMTP HELO command.

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
int Connect();

Unicode (Windows)
INT Connect();

int ipworksssl_smtp_connect(void* lpObj);

int Connect();

Remarks

This method connects to the mail relay and sends the SMTP HELO command, thus preparing to send messages. Any number of messages can later be sent using the Send method.

Example. Connecting and Sending an Email:

control.MailServer = "MyServer" control.From = "me@server.com" control.SendTo = "recipient@server.com" control.Subject = "My Subject" control.MessageText = "This is the message body" control.Connect() control.Send() control.Disconnect()

Error Handling (C++)

This method returns a result code; 0 indicates success, while a non-zero error code indicates that this method encountered an error during its execution. If an error occurs, the GetLastError() method can be called to retrieve the associated error message. (Note: This method's result code can also be obtained by calling the GetLastErrorCode() method after it returns.)

Disconnect Method (SMTP Class)

This method disconnects from the SMTP server.

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
int Disconnect();

Unicode (Windows)
INT Disconnect();

int ipworksssl_smtp_disconnect(void* lpObj);

int Disconnect();

Remarks

This method disconnects from the mail relay.

Error Handling (C++)

This method returns a result code; 0 indicates success, while a non-zero error code indicates that this method encountered an error during its execution. If an error occurs, the GetLastError() method can be called to retrieve the associated error message. (Note: This method's result code can also be obtained by calling the GetLastErrorCode() method after it returns.)

DoEvents Method (SMTP Class)

Processes events from the internal message queue.

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
int DoEvents();

Unicode (Windows)
INT DoEvents();

int ipworksssl_smtp_doevents(void* lpObj);

int DoEvents();

Remarks

When DoEvents is called, the class processes any available events. If no events are available, it waits for a preset period of time, and then returns.

Error Handling (C++)

This method returns a result code; 0 indicates success, while a non-zero error code indicates that this method encountered an error during its execution. If an error occurs, the GetLastError() method can be called to retrieve the associated error message. (Note: This method's result code can also be obtained by calling the GetLastErrorCode() method after it returns.)

Expand Method (SMTP Class)

This method asks the MailServer to expand a name or mailing list.

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
int Expand(const char* lpszEmailAddress);

Unicode (Windows)
INT Expand(LPCWSTR lpszEmailAddress);

int ipworksssl_smtp_expand(void* lpObj, const char* lpszEmailAddress);

int Expand(const QString& qsEmailAddress);

Remarks

This method asks the MailServer to expand a name or mailing list. The resulting response is provided in one or more Expand events (one for each address). The class will try to connect to the mail relay if it is not already connected.

Error Handling (C++)

This method returns a result code; 0 indicates success, while a non-zero error code indicates that this method encountered an error during its execution. If an error occurs, the GetLastError() method can be called to retrieve the associated error message. (Note: This method's result code can also be obtained by calling the GetLastErrorCode() method after it returns.)

Interrupt Method (SMTP Class)

Interrupt the current method.

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
int Interrupt();

Unicode (Windows)
INT Interrupt();

int ipworksssl_smtp_interrupt(void* lpObj);

int Interrupt();

Remarks

If there is no method in progress, Interrupt simply returns, doing nothing.

Error Handling (C++)

This method returns a result code; 0 indicates success, while a non-zero error code indicates that this method encountered an error during its execution. If an error occurs, the GetLastError() method can be called to retrieve the associated error message. (Note: This method's result code can also be obtained by calling the GetLastErrorCode() method after it returns.)

ProcessQueue Method (SMTP Class)

Sends the messages which have previously been queued into QueueDir .

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
int ProcessQueue(const char* lpszQueueDir);

Unicode (Windows)
INT ProcessQueue(LPCWSTR lpszQueueDir);

int ipworksssl_smtp_processqueue(void* lpObj, const char* lpszQueueDir);

int ProcessQueue(const QString& qsQueueDir);

Remarks

This method sends the messages which have previously been queued into QueueDir. The PITrail event shows the interaction with the server as messages as are processed.

This method looks in the directory for files with extension ".queued" and starts processing them.

When processing starts, the file extension is changed to ".sending". If an error happens at this stage, the sending process is aborted, and the file extension is changed to ".failed".

If the file is successfully sent, the file is normally deleted, unless the KeepQueue configuration setting is set to True, in which case the file extension is instead changed to ".sent" and the queue file is not deleted.

Error Handling (C++)

This method returns a result code; 0 indicates success, while a non-zero error code indicates that this method encountered an error during its execution. If an error occurs, the GetLastError() method can be called to retrieve the associated error message. (Note: This method's result code can also be obtained by calling the GetLastErrorCode() method after it returns.)

Queue Method (SMTP Class)

Queues the message into QueueDir .

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
char* Queue(const char* lpszQueueDir);

Unicode (Windows)
LPWSTR Queue(LPCWSTR lpszQueueDir);

char* ipworksssl_smtp_queue(void* lpObj, const char* lpszQueueDir);

QString Queue(const QString& qsQueueDir);

Remarks

This method queues the message into QueueDir. The message is queued into a unique file into the directory QueueDir for future processing.

QueueDir must already exist, or an error will be generated. Alternatively, QueueDir may be set to "*" to return the result as a string instead of writing it to a file.

The method returns the name of the unique queue file created in QueueDir. The file extension is ".queued".

Please refer to the ProcessQueue method for more information on email queue processing.

Error Handling (C++)

This method returns a String value; after it returns, call the GetLastErrorCode() method to obtain its result code; 0 indicates success, while a non-zero error code indicates that this method encountered an error during its execution. If an error occurs, the GetLastError() method can be called to retrieve the associated error message.

Reset Method (SMTP Class)

Reset the class.

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
int Reset();

Unicode (Windows)
INT Reset();

int ipworksssl_smtp_reset(void* lpObj);

int Reset();

Remarks

This method will reset the class's properties to their default values.

Error Handling (C++)

This method returns a result code; 0 indicates success, while a non-zero error code indicates that this method encountered an error during its execution. If an error occurs, the GetLastError() method can be called to retrieve the associated error message. (Note: This method's result code can also be obtained by calling the GetLastErrorCode() method after it returns.)

ResetHeaders Method (SMTP Class)

Resets all the message headers to empty.

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
int ResetHeaders();

Unicode (Windows)
INT ResetHeaders();

int ipworksssl_smtp_resetheaders(void* lpObj);

int ResetHeaders();

Remarks

This method resets all the message headers to "" (empty string). Use this method before creating a new message, so that headers from the previous message are not carried over to the next one.

Error Handling (C++)

This method returns a result code; 0 indicates success, while a non-zero error code indicates that this method encountered an error during its execution. If an error occurs, the GetLastError() method can be called to retrieve the associated error message. (Note: This method's result code can also be obtained by calling the GetLastErrorCode() method after it returns.)

Send Method (SMTP Class)

Sends the current message.

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
int Send();

Unicode (Windows)
INT Send();

int ipworksssl_smtp_send(void* lpObj);

int Send();

Remarks

This method sends the current message. If the class is not connected to the mail relay, a connection is created, the message is sent, and then the connection is closed unless an error occurs.

If the class is already connected (by use of the Connect method), the connection will remain open after the message is sent. To disconnect, call the Disconnect method.

Example (Send an Email)

SMTPControl.MailServer = "MyServer" SMTPControl.From = "me@server.com" SMTPControl.SendTo = "recipient@server.com" SMTPControl.Subject = "My Subject" SMTPControl.MessageText = "This is the message body" SMTPControl.Send()

Error Handling (C++)

This method returns a result code; 0 indicates success, while a non-zero error code indicates that this method encountered an error during its execution. If an error occurs, the GetLastError() method can be called to retrieve the associated error message. (Note: This method's result code can also be obtained by calling the GetLastErrorCode() method after it returns.)

SendCommand Method (SMTP Class)

Sends the exact command directly to the server.

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
int SendCommand(const char* lpszCommand);

Unicode (Windows)
INT SendCommand(LPCWSTR lpszCommand);

int ipworksssl_smtp_sendcommand(void* lpObj, const char* lpszCommand);

int SendCommand(const QString& qsCommand);

Remarks

This method sends the command specified by Command to the server exactly as it is provided. Use this method to send additional or custom commands directly to the server.

After calling this method check the LastReply property and/or monitor the PITrail event to obtain the server's response.

Error Handling (C++)

This method returns a result code; 0 indicates success, while a non-zero error code indicates that this method encountered an error during its execution. If an error occurs, the GetLastError() method can be called to retrieve the associated error message. (Note: This method's result code can also be obtained by calling the GetLastErrorCode() method after it returns.)

SendToTerminalAndEmail Method (SMTP Class)

Sends to terminal and email.

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
int SendToTerminalAndEmail();

Unicode (Windows)
INT SendToTerminalAndEmail();

int ipworksssl_smtp_sendtoterminalandemail(void* lpObj);

int SendToTerminalAndEmail();

Remarks

This method is similar to Send but requests also that the message is sent to the terminal of the user as well, if he is logged on and accepts terminal messages. This method requires that AllowExtensions is set to True and is not supported by all mail relays.

Error Handling (C++)

This method returns a result code; 0 indicates success, while a non-zero error code indicates that this method encountered an error during its execution. If an error occurs, the GetLastError() method can be called to retrieve the associated error message. (Note: This method's result code can also be obtained by calling the GetLastErrorCode() method after it returns.)

SendToTerminalOnly Method (SMTP Class)

Sends to terminal only.

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
int SendToTerminalOnly();

Unicode (Windows)
INT SendToTerminalOnly();

int ipworksssl_smtp_sendtoterminalonly(void* lpObj);

int SendToTerminalOnly();

Remarks

This method is similar to Send but requests instead that the message is sent to the user's terminal. An error code with the server's response is returned if the user is not logged in or does not accept terminal messages. This method requires that AllowExtensions is set to True and is not supported by all mail relays.

Error Handling (C++)

This method returns a result code; 0 indicates success, while a non-zero error code indicates that this method encountered an error during its execution. If an error occurs, the GetLastError() method can be called to retrieve the associated error message. (Note: This method's result code can also be obtained by calling the GetLastErrorCode() method after it returns.)

SendToTerminalOrEmail Method (SMTP Class)

Sends to terminal or email.

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
int SendToTerminalOrEmail();

Unicode (Windows)
INT SendToTerminalOrEmail();

int ipworksssl_smtp_sendtoterminaloremail(void* lpObj);

int SendToTerminalOrEmail();

Remarks

This method is similar to Send but requests instead that the message is first sent to the user's terminal. If the user is not logged in or does not accept terminal messages, the message is sent to his mailbox. This method requires that AllowExtensions is set to True and is not supported by all mail relays.

Error Handling (C++)

This method returns a result code; 0 indicates success, while a non-zero error code indicates that this method encountered an error during its execution. If an error occurs, the GetLastError() method can be called to retrieve the associated error message. (Note: This method's result code can also be obtained by calling the GetLastErrorCode() method after it returns.)

SetMessageStream Method (SMTP Class)

Sets the stream to be uploaded to the server as part of the message.

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
int SetMessageStream(IPWorksSSLStream* sMessageStream);

Unicode (Windows)
INT SetMessageStream(IPWorksSSLStream* sMessageStream);

int ipworksssl_smtp_setmessagestream(void* lpObj, IPWorksSSLStream* sMessageStream);

int SetMessageStream(IPWorksSSLStream* sMessageStream);

Remarks

This method sets the stream to be uploaded to the server as part of the message. If an upload stream is set before the Send method is called, the content of the stream will be read by the class and uploaded to the server; The stream should be open and normally set to position 0. The class will automatically close this stream if CloseStreamAfterTransfer is set to true (default). If the stream is closed, you will need to call this method again before calling Send again. The content of the stream will be read from the current position all the way to the end.

Note: This method and LocalFile will reset the other.

Error Handling (C++)

This method returns a result code; 0 indicates success, while a non-zero error code indicates that this method encountered an error during its execution. If an error occurs, the GetLastError() method can be called to retrieve the associated error message. (Note: This method's result code can also be obtained by calling the GetLastErrorCode() method after it returns.)

Verify Method (SMTP Class)

Sends a Verification request to the SMTP server.

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
int Verify(const char* lpszEmailAddress);

Unicode (Windows)
INT Verify(LPCWSTR lpszEmailAddress);

int ipworksssl_smtp_verify(void* lpObj, const char* lpszEmailAddress);

int Verify(const QString& qsEmailAddress);

Remarks

This method asks the MailServer to verify the email address provided in the 'EmailAddress' parameter.

Error Handling (C++)

This method returns a result code; 0 indicates success, while a non-zero error code indicates that this method encountered an error during its execution. If an error occurs, the GetLastError() method can be called to retrieve the associated error message. (Note: This method's result code can also be obtained by calling the GetLastErrorCode() method after it returns.)

ConnectionStatus Event (SMTP Class)

This event is fired to indicate changes in the connection state.

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
virtual int FireConnectionStatus(SMTPConnectionStatusEventParams *e);

typedef struct {
  const char *ConnectionEvent;
  int StatusCode;
  const char *Description;
  int reserved;
} SMTPConnectionStatusEventParams;


Unicode (Windows)
virtual INT FireConnectionStatus(SMTPConnectionStatusEventParams *e);

typedef struct {
  LPCWSTR ConnectionEvent;
  INT StatusCode;
  LPCWSTR Description;
  INT reserved;
} SMTPConnectionStatusEventParams;

#define EID_SMTP_CONNECTIONSTATUS 1

virtual INT IPWORKSSSL_CALL FireConnectionStatus(LPSTR &lpszConnectionEvent, INT &iStatusCode, LPSTR &lpszDescription);

class SMTPConnectionStatusEventParams {
public:
  const QString &ConnectionEvent();

  int StatusCode();

  const QString &Description();

  int EventRetVal();
  void SetEventRetVal(int iRetVal);
};

// To handle, connect one or more slots to this signal.
void ConnectionStatus(SMTPConnectionStatusEventParams *e);

// Or, subclass SMTP and override this emitter function.
virtual int FireConnectionStatus(SMTPConnectionStatusEventParams *e) {...}

Remarks

The ConnectionStatus event is fired when the connection state changes: for example, completion of a firewall or proxy connection or completion of a security handshake.

The ConnectionEvent parameter indicates the type of connection event. Values may include the following:

EndTransfer Event (SMTP Class)

This event is fired when the message text completes transferring.

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
virtual int FireEndTransfer(SMTPEndTransferEventParams *e);

typedef struct {
  int Direction;
  int reserved;
} SMTPEndTransferEventParams;


Unicode (Windows)
virtual INT FireEndTransfer(SMTPEndTransferEventParams *e);

typedef struct {
  INT Direction;
  INT reserved;
} SMTPEndTransferEventParams;

#define EID_SMTP_ENDTRANSFER 2

virtual INT IPWORKSSSL_CALL FireEndTransfer(INT &iDirection);

class SMTPEndTransferEventParams {
public:
  int Direction();

  int EventRetVal();
  void SetEventRetVal(int iRetVal);
};

// To handle, connect one or more slots to this signal.
void EndTransfer(SMTPEndTransferEventParams *e);

// Or, subclass SMTP and override this emitter function.
virtual int FireEndTransfer(SMTPEndTransferEventParams *e) {...}

Remarks

If MessageText is not empty, the EndTransfer event is fired when the MessageText finishes transferring from the local host to the MailServer. If MessageText is empty, the event is not fired.

If a file is attached to the MessageText via the AttachedFile property, then EndTransfer fires again when the file finishes transferring. For more information, go to the description of the AttachedFile property.

The Direction parameter shows whether the client (0) or the server (1) is sending the data.

Error Event (SMTP Class)

Information about errors during data delivery.

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
virtual int FireError(SMTPErrorEventParams *e);

typedef struct {
  int ErrorCode;
  const char *Description;
  int reserved;
} SMTPErrorEventParams;


Unicode (Windows)
virtual INT FireError(SMTPErrorEventParams *e);

typedef struct {
  INT ErrorCode;
  LPCWSTR Description;
  INT reserved;
} SMTPErrorEventParams;

#define EID_SMTP_ERROR 3

virtual INT IPWORKSSSL_CALL FireError(INT &iErrorCode, LPSTR &lpszDescription);

class SMTPErrorEventParams {
public:
  int ErrorCode();

  const QString &Description();

  int EventRetVal();
  void SetEventRetVal(int iRetVal);
};

// To handle, connect one or more slots to this signal.
void Error(SMTPErrorEventParams *e);

// Or, subclass SMTP and override this emitter function.
virtual int FireError(SMTPErrorEventParams *e) {...}

Remarks

The Error event is fired in case of exceptional conditions during message processing. Normally the class fails with an error.

The ErrorCode parameter contains an error code, and the Description parameter contains a textual description of the error. For a list of valid error codes and their descriptions, please refer to the Error Codes section.

Expand Event (SMTP Class)

This event is fired for every email address returned by the server when the Expand method is called.

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
virtual int FireExpand(SMTPExpandEventParams *e);

typedef struct {
  const char *Address;
  int reserved;
} SMTPExpandEventParams;


Unicode (Windows)
virtual INT FireExpand(SMTPExpandEventParams *e);

typedef struct {
  LPCWSTR Address;
  INT reserved;
} SMTPExpandEventParams;

#define EID_SMTP_EXPAND 4

virtual INT IPWORKSSSL_CALL FireExpand(LPSTR &lpszAddress);

class SMTPExpandEventParams {
public:
  const QString &Address();

  int EventRetVal();
  void SetEventRetVal(int iRetVal);
};

// To handle, connect one or more slots to this signal.
void Expand(SMTPExpandEventParams *e);

// Or, subclass SMTP and override this emitter function.
virtual int FireExpand(SMTPExpandEventParams *e) {...}

Remarks

This event is fired for every email address as returned by the mail server when the Expand method is called.

The Address parameter may contain a name and an email address, or just an email address, suitable for any of the addressing properties.

PITrail Event (SMTP Class)

Traces the commands sent to the mail server, and the respective replies.

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
virtual int FirePITrail(SMTPPITrailEventParams *e);

typedef struct {
  int Direction;
  const char *Message;
  int reserved;
} SMTPPITrailEventParams;


Unicode (Windows)
virtual INT FirePITrail(SMTPPITrailEventParams *e);

typedef struct {
  INT Direction;
  LPCWSTR Message;
  INT reserved;
} SMTPPITrailEventParams;

#define EID_SMTP_PITRAIL 5

virtual INT IPWORKSSSL_CALL FirePITrail(INT &iDirection, LPSTR &lpszMessage);

class SMTPPITrailEventParams {
public:
  int Direction();

  const QString &Message();

  int EventRetVal();
  void SetEventRetVal(int iRetVal);
};

// To handle, connect one or more slots to this signal.
void PITrail(SMTPPITrailEventParams *e);

// Or, subclass SMTP and override this emitter function.
virtual int FirePITrail(SMTPPITrailEventParams *e) {...}

Remarks

The PITrail event is useful for debugging purposes. It shows all the interaction between the client and the server, line by line, except for message header and body transfers.

The Message parameter contains the full text of the message. The Direction parameter shows the originator of the message:

SSLServerAuthentication Event (SMTP Class)

Fired after the server presents its certificate to the client.

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
virtual int FireSSLServerAuthentication(SMTPSSLServerAuthenticationEventParams *e);

typedef struct {
  const char *CertEncoded;
  int lenCertEncoded;
  const char *CertSubject;
  const char *CertIssuer;
  const char *Status;
  int Accept;
  int reserved;
} SMTPSSLServerAuthenticationEventParams;


Unicode (Windows)
virtual INT FireSSLServerAuthentication(SMTPSSLServerAuthenticationEventParams *e);

typedef struct {
  LPCSTR CertEncoded;
  INT lenCertEncoded;
  LPCWSTR CertSubject;
  LPCWSTR CertIssuer;
  LPCWSTR Status;
  BOOL Accept;
  INT reserved;
} SMTPSSLServerAuthenticationEventParams;

#define EID_SMTP_SSLSERVERAUTHENTICATION 6

virtual INT IPWORKSSSL_CALL FireSSLServerAuthentication(LPSTR &lpCertEncoded, INT &lenCertEncoded, LPSTR &lpszCertSubject, LPSTR &lpszCertIssuer, LPSTR &lpszStatus, BOOL &bAccept);

class SMTPSSLServerAuthenticationEventParams {
public:
  const QByteArray &CertEncoded();

  const QString &CertSubject();

  const QString &CertIssuer();

  const QString &Status();

  bool Accept();
  void SetAccept(bool bAccept);

  int EventRetVal();
  void SetEventRetVal(int iRetVal);
};

// To handle, connect one or more slots to this signal.
void SSLServerAuthentication(SMTPSSLServerAuthenticationEventParams *e);

// Or, subclass SMTP and override this emitter function.
virtual int FireSSLServerAuthentication(SMTPSSLServerAuthenticationEventParams *e) {...}

Remarks

During this event, the client can decide whether or not to continue with the connection process. The Accept parameter is a recommendation on whether to continue or close the connection. This is just a suggestion: application software must use its own logic to determine whether or not to continue.

When Accept is False, Status shows why the verification failed (otherwise, Status contains the string OK). If it is decided to continue, you can override and accept the certificate by setting the Accept parameter to True.

SSLStatus Event (SMTP Class)

Shows the progress of the secure connection.

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
virtual int FireSSLStatus(SMTPSSLStatusEventParams *e);

typedef struct {
  const char *Message;
  int reserved;
} SMTPSSLStatusEventParams;


Unicode (Windows)
virtual INT FireSSLStatus(SMTPSSLStatusEventParams *e);

typedef struct {
  LPCWSTR Message;
  INT reserved;
} SMTPSSLStatusEventParams;

#define EID_SMTP_SSLSTATUS 7

virtual INT IPWORKSSSL_CALL FireSSLStatus(LPSTR &lpszMessage);

class SMTPSSLStatusEventParams {
public:
  const QString &Message();

  int EventRetVal();
  void SetEventRetVal(int iRetVal);
};

// To handle, connect one or more slots to this signal.
void SSLStatus(SMTPSSLStatusEventParams *e);

// Or, subclass SMTP and override this emitter function.
virtual int FireSSLStatus(SMTPSSLStatusEventParams *e) {...}

Remarks

The event is fired for informational and logging purposes only. This event tracks the progress of the connection.

StartTransfer Event (SMTP Class)

Fired when the message text starts transferring.

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
virtual int FireStartTransfer(SMTPStartTransferEventParams *e);

typedef struct {
  int Direction;
  int reserved;
} SMTPStartTransferEventParams;


Unicode (Windows)
virtual INT FireStartTransfer(SMTPStartTransferEventParams *e);

typedef struct {
  INT Direction;
  INT reserved;
} SMTPStartTransferEventParams;

#define EID_SMTP_STARTTRANSFER 8

virtual INT IPWORKSSSL_CALL FireStartTransfer(INT &iDirection);

class SMTPStartTransferEventParams {
public:
  int Direction();

  int EventRetVal();
  void SetEventRetVal(int iRetVal);
};

// To handle, connect one or more slots to this signal.
void StartTransfer(SMTPStartTransferEventParams *e);

// Or, subclass SMTP and override this emitter function.
virtual int FireStartTransfer(SMTPStartTransferEventParams *e) {...}

Remarks

If MessageText is not empty, the StartTransfer event is fired when the MessageText starts transferring from the local host to the MailServer. If MessageText is empty, the event is not fired.

If a file is attached to the MessageText via the AttachedFile property, then StartTransfer fires again when the file starts transferring. Please go to the description of the AttachedFile property for more information.

The Direction parameter shows whether the client (0) or the server (1) is sending the data.

Transfer Event (SMTP Class)

Fired while the message text gets transferred to MailServer .

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
virtual int FireTransfer(SMTPTransferEventParams *e);

typedef struct {
  int Direction;
  int64 BytesTransferred;
  int PercentDone;
  const char *Text;
  int lenText;
  int reserved;
} SMTPTransferEventParams;


Unicode (Windows)
virtual INT FireTransfer(SMTPTransferEventParams *e);

typedef struct {
  INT Direction;
  LONG64 BytesTransferred;
  INT PercentDone;
  LPCSTR Text;
  INT lenText;
  INT reserved;
} SMTPTransferEventParams;

#define EID_SMTP_TRANSFER 9

virtual INT IPWORKSSSL_CALL FireTransfer(INT &iDirection, LONG64 &lBytesTransferred, INT &iPercentDone, LPSTR &lpText, INT &lenText);

class SMTPTransferEventParams {
public:
  int Direction();

  qint64 BytesTransferred();

  int PercentDone();

  const QByteArray &Text();

  int EventRetVal();
  void SetEventRetVal(int iRetVal);
};

// To handle, connect one or more slots to this signal.
void Transfer(SMTPTransferEventParams *e);

// Or, subclass SMTP and override this emitter function.
virtual int FireTransfer(SMTPTransferEventParams *e) {...}

Remarks

One or more Transfer events are fired during message delivery. Messages consist of MessageText and an optional AttachedFile. The BytesTransferred parameter shows the number of bytes sent starting from the beginning of MessageText and/or AttachedFile.

Text contains the current portion of the message being sent.

The Direction parameter shows whether the client (0) or the server (1) is sending the data.

The PercentDone parameter shows the progress of the transfer in the corresponding direction. If PercentDone can not be calculated the value will be -1.

Note: Events are not re-entrant. Performing time-consuming operations within this event will prevent it from firing again in a timely manner and may affect overall performance.

IPWorksSSLStream Type

Syntax

IPWorksSSLStream (declared in ipworksssl.h)

Remarks

The SMTP class includes one or more API members that take a stream object as a parameter. To use such API members, create a concrete class that implements the IPWorksSSLStream interface and pass the SMTP class an instance of that concrete class.

When implementing the IPWorksSSLStream interface's properties and methods, they must behave as described below. If the concrete class's implementation does not behave as expected, undefined behavior may occur.

bool CanRead() { return true; }

bool CanSeek() { return true; }

bool CanWrite() { return true; }

int64 GetLength() = 0;

void Close() {}

int Flush() { return 0; }

int Read(void* buffer, int count) = 0;

int64 Seek(int64 offset, int seekOrigin) = 0;

int Write(const void* buffer, int count) = 0;

Config Settings (SMTP Class)

SMTP Config Settings

TCPClient Config Settings

SSL Config Settings

-----BEGIN CERTIFICATE-----
MIIEKzCCAxOgAwIBAgIRANTET4LIkxdH6P+CFIiHvTowDQYJKoZIhvcNAQELBQAw
...
eWHV5OW1K53o/atv59sOiW5K3crjFhsBOd5Q+cJJnU+SWinPKtANXMht+EDvYY2w
F0I1XhM+pKj7FjDr+XNj
-----END CERTIFICATE-----
\r \n
-----BEGIN CERTIFICATE-----
MIIEFjCCAv6gAwIBAgIQetu1SMxpnENAnnOz1P+PtTANBgkqhkiG9w0BAQUFADBp
..
d8q23djXZbVYiIfE9ebr4g3152BlVCHZ2GyPdjhIuLeH21VbT/dyEHHA
-----END CERTIFICATE-----

-----BEGIN CERTIFICATE-----
MIIEKzCCAxOgAwIBAgIRANTET4LIkxdH6P+CFIiHvTowDQYJKoZIhvcNAQELBQAw
...
eWHV5OW1K53o/atv59sOiW5K3crjFhsBOd5Q+cJJnU+SWinPKtANXMht+EDvYY2w
F0I1XhM+pKj7FjDr+XNj
-----END CERTIFICATE-----
\r \n
-----BEGIN CERTIFICATE-----
MIIEFjCCAv6gAwIBAgIQetu1SMxpnENAnnOz1P+PtTANBgkqhkiG9w0BAQUFADBp
..
d8q23djXZbVYiIfE9ebr4g3152BlVCHZ2GyPdjhIuLeH21VbT/dyEHHA
-----END CERTIFICATE-----

Socket Config Settings

Base Config Settings

Trappable Errors (SMTP Class)

Error Handling (C++)

Call the GetLastErrorCode() method to obtain the last called method's result code; 0 indicates success, while a non-zero error code indicates that this method encountered an error during its execution. Known error codes are listed below. If an error occurs, the GetLastError() method can be called to retrieve the associated error message.

SMTP Errors

The class may also return one of the following error codes, which are inherited from other classes.

SSLClient Errors

SSL Errors

TCP/IP Errors