SMTP Module

Properties   Methods   Events   Config Settings   Errors  

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

Syntax

IPWorks.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 module with short descriptions. Click on the links for further details.

Method List

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

Event List

The following is the full list of the events fired by the module with short descriptions. Click on the links for further details.

Config Settings

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

AllowExtensions Property (SMTP Module)

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

Syntax

• Swift
• Objective-C

public var allowExtensions: Bool {
  get {...}
  set {...}
}

@property (nonatomic,readwrite,assign,getter=allowExtensions,setter=setAllowExtensions:) BOOL allowExtensions;

- (BOOL)allowExtensions;
- (void)setAllowExtensions :(BOOL)newAllowExtensions;

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.

AuthMechanism Property (SMTP Module)

This property is used when connecting to the mail server.

Syntax

• Swift
• Objective-C

public var authMechanism: SmtpAuthMechanisms {
  get {...}
  set {...}
}

public enum SmtpAuthMechanisms: Int32 {
  case amUserPassword = 0
  case amCRAMMD5 = 1
  case amNTLM = 2
  case amAPOP = 3
  case amSASLPlain = 4
  case amSASLDigestMD5 = 5
  case amKerberos = 6
  case amXOAUTH2 = 7
}

@property (nonatomic,readwrite,assign,getter=authMechanism,setter=setAuthMechanism:) int authMechanism;

- (int)authMechanism;
- (void)setAuthMechanism :(int)newAuthMechanism;

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.

BCc Property (SMTP Module)

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

Syntax

• Swift
• Objective-C

public var bcc: String {
  get {...}
  set {...}
}

@property (nonatomic,readwrite,assign,getter=BCc,setter=setBCc:) NSString* BCc;

- (NSString*)BCc;
- (void)setBCc :(NSString*)newBCc;

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.

Cc Property (SMTP Module)

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

Syntax

• Swift
• Objective-C

public var cc: String {
  get {...}
  set {...}
}

@property (nonatomic,readwrite,assign,getter=cc,setter=setCc:) NSString* cc;

- (NSString*)cc;
- (void)setCc :(NSString*)newCc;

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.

Command Property (SMTP Module)

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

Syntax

• Swift
• Objective-C

public var command: String {  set {...}
}

@property (nonatomic,readwrite,assign,getter=command,setter=setCommand:) NSString* command;

- (NSString*)command;
- (void)setCommand :(NSString*)newCommand;

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.

Connected Property (SMTP Module)

This shows whether the module is connected.

Syntax

• Swift
• Objective-C

public var connected: Bool {
  get {...}
  set {...}
}

@property (nonatomic,readwrite,assign,getter=connected,setter=setConnected:) BOOL connected;

- (BOOL)connected;
- (void)setConnected :(BOOL)newConnected;

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.

DeliveryNotificationTo Property (SMTP Module)

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

Syntax

• Swift
• Objective-C

public var deliveryNotificationTo: String {
  get {...}
  set {...}
}

@property (nonatomic,readwrite,assign,getter=deliveryNotificationTo,setter=setDeliveryNotificationTo:) NSString* deliveryNotificationTo;

- (NSString*)deliveryNotificationTo;
- (void)setDeliveryNotificationTo :(NSString*)newDeliveryNotificationTo;

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.

Firewall Property (SMTP Module)

A set of properties related to firewall access.

Syntax

• Swift
• Objective-C

public var firewall: Firewall {
  get {...}
  set {...}
}

@property (nonatomic,readwrite,assign,getter=firewallAutoDetect,setter=setFirewallAutoDetect:) BOOL firewallAutoDetect;

- (BOOL)firewallAutoDetect;
- (void)setFirewallAutoDetect :(BOOL)newFirewallAutoDetect;

@property (nonatomic,readwrite,assign,getter=firewallType,setter=setFirewallType:) int firewallType;

- (int)firewallType;
- (void)setFirewallType :(int)newFirewallType;

@property (nonatomic,readwrite,assign,getter=firewallHost,setter=setFirewallHost:) NSString* firewallHost;

- (NSString*)firewallHost;
- (void)setFirewallHost :(NSString*)newFirewallHost;

@property (nonatomic,readwrite,assign,getter=firewallPassword,setter=setFirewallPassword:) NSString* firewallPassword;

- (NSString*)firewallPassword;
- (void)setFirewallPassword :(NSString*)newFirewallPassword;

@property (nonatomic,readwrite,assign,getter=firewallPort,setter=setFirewallPort:) int firewallPort;

- (int)firewallPort;
- (void)setFirewallPort :(int)newFirewallPort;

@property (nonatomic,readwrite,assign,getter=firewallUser,setter=setFirewallUser:) NSString* firewallUser;

- (NSString*)firewallUser;
- (void)setFirewallUser :(NSString*)newFirewallUser;

 

Default Value

""

Remarks

This is a Firewall-type property, which contains fields describing the firewall through which the class will attempt to connect.

From Property (SMTP Module)

The email address of the sender (required).

Syntax

• Swift
• Objective-C

public var from: String {
  get {...}
  set {...}
}

@property (nonatomic,readwrite,assign,getter=from,setter=setFrom:) NSString* from;

- (NSString*)from;
- (void)setFrom :(NSString*)newFrom;

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.

Idle Property (SMTP Module)

The current status of the module.

Syntax

• Swift
• Objective-C

public var idle: Bool {
  get {...}
}

@property (nonatomic,readonly,assign,getter=idle) BOOL idle;

- (BOOL)idle;

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.

Importance Property (SMTP Module)

Importance of the mail message (optional).

Syntax

• Swift
• Objective-C

public var importance: SmtpImportances {
  get {...}
  set {...}
}

public enum SmtpImportances: Int32 {
  case miUnspecified = 0
  case miHigh = 1
  case miNormal = 2
  case miLow = 3
}

@property (nonatomic,readwrite,assign,getter=importance,setter=setImportance:) int importance;

- (int)importance;
- (void)setImportance :(int)newImportance;

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).

LastReply Property (SMTP Module)

The last reply from the server.

Syntax

• Swift
• Objective-C

public var lastReply: String {
  get {...}
}

@property (nonatomic,readonly,assign,getter=lastReply) NSString* lastReply;

- (NSString*)lastReply;

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.

LocalHost Property (SMTP Module)

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

Syntax

• Swift
• Objective-C

public var localHost: String {
  get {...}
  set {...}
}

@property (nonatomic,readwrite,assign,getter=localHost,setter=setLocalHost:) NSString* localHost;

- (NSString*)localHost;
- (void)setLocalHost :(NSString*)newLocalHost;

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.

MailPort Property (SMTP Module)

The server port for SMTP (default 25).

Syntax

• Swift
• Objective-C

public var mailPort: Int32 {
  get {...}
  set {...}
}

@property (nonatomic,readwrite,assign,getter=mailPort,setter=setMailPort:) int mailPort;

- (int)mailPort;
- (void)setMailPort :(int)newMailPort;

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).

MailServer Property (SMTP Module)

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

Syntax

• Swift
• Objective-C

public var mailServer: String {
  get {...}
  set {...}
}

@property (nonatomic,readwrite,assign,getter=mailServer,setter=setMailServer:) NSString* mailServer;

- (NSString*)mailServer;
- (void)setMailServer :(NSString*)newMailServer;

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.

Message Property (SMTP Module)

Provides a way to set the raw message content.

Syntax

• Swift
• Objective-C

public var message: String {
  get {...}
  set {...}
}

public var messageB: Data {
  get {...}
  set {...}
}

@property (nonatomic,readwrite,assign,getter=message,setter=setMessage:) NSString* message;

- (NSString*)message;
- (void)setMessage :(NSString*)newMessage;

@property (nonatomic,readwrite,assign,getter=messageB,setter=setMessageB:) NSData* messageB;

- (NSData*)messageB;
- (void)setMessageB :(NSData*)newMessage;

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.

MessageDate Property (SMTP Module)

Date of the mail message (optional).

Syntax

• Swift
• Objective-C

public var messageDate: String {
  get {...}
  set {...}
}

@property (nonatomic,readwrite,assign,getter=messageDate,setter=setMessageDate:) NSString* messageDate;

- (NSString*)messageDate;
- (void)setMessageDate :(NSString*)newMessageDate;

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".

MessageHeaders Property (SMTP Module)

Collection of RFC822-encoded headers of the message.

Syntax

• Swift
• Objective-C

public var messageHeaders: Array<Header> {
  get {...}
}

@property (nonatomic,readonly,assign,getter=messageHeaderCount) int messageHeaderCount;

- (int)messageHeaderCount;

- (NSString*)messageHeaderField:(int)messageHeaderIndex;

- (NSString*)messageHeaderValue:(int)messageHeaderIndex;

Default Value

""

Remarks

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

MessageHeadersString Property (SMTP Module)

String representation of RFC822-encoded headers of the message.

Syntax

• Swift
• Objective-C

public var messageHeadersString: String {
  get {...}
}

@property (nonatomic,readonly,assign,getter=messageHeadersString) NSString* messageHeadersString;

- (NSString*)messageHeadersString;

Default Value

""

Remarks

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

This property is read-only.

MessageId Property (SMTP Module)

The Message Identifier for the message.

Syntax

• Swift
• Objective-C

public var messageId: String {
  get {...}
  set {...}
}

@property (nonatomic,readwrite,assign,getter=messageId,setter=setMessageId:) NSString* messageId;

- (NSString*)messageId;
- (void)setMessageId :(NSString*)newMessageId;

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.

MessageRecipients Property (SMTP Module)

The collection of recipients of the message.

Syntax

• Swift
• Objective-C

public var messageRecipients: Array<MessageRecipient> {
  get {...}
}

@property (nonatomic,readwrite,assign,getter=messageRecipientCount,setter=setMessageRecipientCount:) int messageRecipientCount;

- (int)messageRecipientCount;
- (void)setMessageRecipientCount :(int)newMessageRecipientCount;

- (NSString*)messageRecipientAddress:(int)recipientIndex;
- (void)setMessageRecipientAddress:(int)recipientIndex :(NSString*)newMessageRecipientAddress;

- (NSString*)messageRecipientName:(int)recipientIndex;
- (void)setMessageRecipientName:(int)recipientIndex :(NSString*)newMessageRecipientName;

- (NSString*)messageRecipientOptions:(int)recipientIndex;
- (void)setMessageRecipientOptions:(int)recipientIndex :(NSString*)newMessageRecipientOptions;

- (int)messageRecipientType:(int)recipientIndex;
- (void)setMessageRecipientType:(int)recipientIndex :(int)newMessageRecipientType;

Default Value

""

Remarks

This property contains a collection which describes to whom the message is being sent. You may include all recipients in this property, even Cc's and BCc's, which are specified by the type field.

MessageText Property (SMTP Module)

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

Syntax

• Swift
• Objective-C

public var messageText: String {
  get {...}
  set {...}
}

@property (nonatomic,readwrite,assign,getter=messageText,setter=setMessageText:) NSString* messageText;

- (NSString*)messageText;
- (void)setMessageText :(NSString*)newMessageText;

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 . 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.

OtherHeaders Property (SMTP Module)

An RFC 822 compliant string consisting of extra headers.

Syntax

• Swift
• Objective-C

public var otherHeaders: String {
  get {...}
  set {...}
}

@property (nonatomic,readwrite,assign,getter=otherHeaders,setter=setOtherHeaders:) NSString* otherHeaders;

- (NSString*)otherHeaders;
- (void)setOtherHeaders :(NSString*)newOtherHeaders;

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 .

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();

Password Property (SMTP Module)

A password for logon to the MailServer .

Syntax

• Swift
• Objective-C

public var password: String {
  get {...}
  set {...}
}

@property (nonatomic,readwrite,assign,getter=password,setter=setPassword:) NSString* password;

- (NSString*)password;
- (void)setPassword :(NSString*)newPassword;

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.

Priority Property (SMTP Module)

Priority of the mail message (optional).

Syntax

• Swift
• Objective-C

public var priority: SmtpPriorities {
  get {...}
  set {...}
}

public enum SmtpPriorities: Int32 {
  case epUnspecified = 0
  case epNormal = 1
  case epUrgent = 2
  case epNonUrgent = 3
}

@property (nonatomic,readwrite,assign,getter=priority,setter=setPriority:) int priority;

- (int)priority;
- (void)setPriority :(int)newPriority;

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.

ReadReceiptTo Property (SMTP Module)

Email address to send a read receipt to.

Syntax

• Swift
• Objective-C

public var readReceiptTo: String {
  get {...}
  set {...}
}

@property (nonatomic,readwrite,assign,getter=readReceiptTo,setter=setReadReceiptTo:) NSString* readReceiptTo;

- (NSString*)readReceiptTo;
- (void)setReadReceiptTo :(NSString*)newReadReceiptTo;

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.

ReplyTo Property (SMTP Module)

A mail address to which to reply (optional).

Syntax

• Swift
• Objective-C

public var replyTo: String {
  get {...}
  set {...}
}

@property (nonatomic,readwrite,assign,getter=replyTo,setter=setReplyTo:) NSString* replyTo;

- (NSString*)replyTo;
- (void)setReplyTo :(NSString*)newReplyTo;

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.

ReturnPath Property (SMTP Module)

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

Syntax

• Swift
• Objective-C

public var returnPath: String {
  get {...}
  set {...}
}

@property (nonatomic,readwrite,assign,getter=returnPath,setter=setReturnPath:) NSString* returnPath;

- (NSString*)returnPath;
- (void)setReturnPath :(NSString*)newReturnPath;

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.

SendTo Property (SMTP Module)

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

Syntax

• Swift
• Objective-C

public var sendTo: String {
  get {...}
  set {...}
}

@property (nonatomic,readwrite,assign,getter=sendTo,setter=setSendTo:) NSString* sendTo;

- (NSString*)sendTo;
- (void)setSendTo :(NSString*)newSendTo;

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.

Sensitivity Property (SMTP Module)

Sensitivity of the mail message (optional).

Syntax

• Swift
• Objective-C

public var sensitivity: SmtpSensitivities {
  get {...}
  set {...}
}

public enum SmtpSensitivities: Int32 {
  case esUnspecified = 0
  case esPersonal = 1
  case esPrivate = 2
  case esCompanyConfidential = 3
}

@property (nonatomic,readwrite,assign,getter=sensitivity,setter=setSensitivity:) int sensitivity;

- (int)sensitivity;
- (void)setSensitivity :(int)newSensitivity;

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).

SSLAcceptServerCertEncoded Property (SMTP Module)

This is the certificate (PEM/Base64 encoded).

Syntax

• Swift
• Objective-C

public var sslAcceptServerCertEncoded: String {
  get {...}
  set {...}
}

public var sslAcceptServerCertEncodedB: Data {
  get {...}
  set {...}
}

@property (nonatomic,readwrite,assign,getter=SSLAcceptServerCertEncoded,setter=setSSLAcceptServerCertEncoded:) NSString* SSLAcceptServerCertEncoded;

- (NSString*)SSLAcceptServerCertEncoded;
- (void)setSSLAcceptServerCertEncoded :(NSString*)newSSLAcceptServerCertEncoded;

@property (nonatomic,readwrite,assign,getter=SSLAcceptServerCertEncodedB,setter=setSSLAcceptServerCertEncodedB:) NSData* SSLAcceptServerCertEncodedB;

- (NSData*)SSLAcceptServerCertEncodedB;
- (void)setSSLAcceptServerCertEncodedB :(NSData*)newSSLAcceptServerCertEncoded;

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.

If an error occurs when setting this property an error will not be thrown. This property has a related method which will throw an error:

public func setSSLAcceptServerCertEncodedB(sslAcceptServerCertEncoded: Data) throws
public func setSSLAcceptServerCertEncoded(sslAcceptServerCertEncoded: String) throws

SSLCertEncoded Property (SMTP Module)

This is the certificate (PEM/Base64 encoded).

Syntax

• Swift
• Objective-C

public var sslCertEncoded: String {
  get {...}
  set {...}
}

public var sslCertEncodedB: Data {
  get {...}
  set {...}
}

@property (nonatomic,readwrite,assign,getter=SSLCertEncoded,setter=setSSLCertEncoded:) NSString* SSLCertEncoded;

- (NSString*)SSLCertEncoded;
- (void)setSSLCertEncoded :(NSString*)newSSLCertEncoded;

@property (nonatomic,readwrite,assign,getter=SSLCertEncodedB,setter=setSSLCertEncodedB:) NSData* SSLCertEncodedB;

- (NSData*)SSLCertEncodedB;
- (void)setSSLCertEncodedB :(NSData*)newSSLCertEncoded;

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.

If an error occurs when setting this property an error will not be thrown. This property has a related method which will throw an error:

public func setSSLCertEncodedB(sslCertEncoded: Data) throws
public func setSSLCertEncoded(sslCertEncoded: String) throws

SSLCertStore Property (SMTP Module)

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

Syntax

• Swift
• Objective-C

public var sslCertStore: String {
  get {...}
  set {...}
}

public var sslCertStoreB: Data {
  get {...}
  set {...}
}

@property (nonatomic,readwrite,assign,getter=SSLCertStore,setter=setSSLCertStore:) NSString* SSLCertStore;

- (NSString*)SSLCertStore;
- (void)setSSLCertStore :(NSString*)newSSLCertStore;

@property (nonatomic,readwrite,assign,getter=SSLCertStoreB,setter=setSSLCertStoreB:) NSData* SSLCertStoreB;

- (NSData*)SSLCertStoreB;
- (void)setSSLCertStoreB :(NSData*)newSSLCertStore;

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).

SSLCertStorePassword Property (SMTP Module)

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

Syntax

• Swift
• Objective-C

public var sslCertStorePassword: String {
  get {...}
  set {...}
}

@property (nonatomic,readwrite,assign,getter=SSLCertStorePassword,setter=setSSLCertStorePassword:) NSString* SSLCertStorePassword;

- (NSString*)SSLCertStorePassword;
- (void)setSSLCertStorePassword :(NSString*)newSSLCertStorePassword;

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.

SSLCertStoreType Property (SMTP Module)

This is the type of certificate store for this certificate.

Syntax

• Swift
• Objective-C

public var sslCertStoreType: SmtpSSLCertStoreTypes {
  get {...}
  set {...}
}

public enum SmtpSSLCertStoreTypes: Int32 {
  case cstUser = 0
  case cstMachine = 1
  case cstPFXFile = 2
  case cstPFXBlob = 3
  case cstJKSFile = 4
  case cstJKSBlob = 5
  case cstPEMKeyFile = 6
  case cstPEMKeyBlob = 7
  case cstPublicKeyFile = 8
  case cstPublicKeyBlob = 9
  case cstSSHPublicKeyBlob = 10
  case cstP7BFile = 11
  case cstP7BBlob = 12
  case cstSSHPublicKeyFile = 13
  case cstPPKFile = 14
  case cstPPKBlob = 15
  case cstXMLFile = 16
  case cstXMLBlob = 17
  case cstJWKFile = 18
  case cstJWKBlob = 19
  case cstSecurityKey = 20
  case cstBCFKSFile = 21
  case cstBCFKSBlob = 22
  case cstPKCS11 = 23
  case cstAuto = 99
}

@property (nonatomic,readwrite,assign,getter=SSLCertStoreType,setter=setSSLCertStoreType:) int SSLCertStoreType;

- (int)SSLCertStoreType;
- (void)setSSLCertStoreType :(int)newSSLCertStoreType;

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:

SSLCertSubject Property (SMTP Module)

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

Syntax

• Swift
• Objective-C

public var sslCertSubject: String {
  get {...}
  set {...}
}

@property (nonatomic,readwrite,assign,getter=SSLCertSubject,setter=setSSLCertSubject:) NSString* SSLCertSubject;

- (NSString*)SSLCertSubject;
- (void)setSSLCertSubject :(NSString*)newSSLCertSubject;

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.

If an error occurs when setting this property an error will not be thrown. This property has a related method which will throw an error:

public func setSSLCertSubject(sslCertSubject: String) throws

SSLEnabled Property (SMTP Module)

Whether TLS/SSL is enabled.

Syntax

• Swift
• Objective-C

public var sslEnabled: Bool {
  get {...}
  set {...}
}

@property (nonatomic,readwrite,assign,getter=SSLEnabled,setter=setSSLEnabled:) BOOL SSLEnabled;

- (BOOL)SSLEnabled;
- (void)setSSLEnabled :(BOOL)newSSLEnabled;

Default Value

False

Remarks

This setting specifies whether TLS/SSL is enabled in the class. When False (default) the class operates in plaintext mode. When True TLS/SSL is enabled.

TLS/SSL may also be enabled by setting SSLStartMode. Setting SSLStartMode will automatically update this property value.

SSLProvider Property (SMTP Module)

This specifies the SSL/TLS implementation to use.

Syntax

• Swift
• Objective-C

public var sslProvider: SmtpSSLProviders {
  get {...}
  set {...}
}

public enum SmtpSSLProviders: Int32 {
  case sslpAutomatic = 0
  case sslpPlatform = 1
  case sslpInternal = 2
}

@property (nonatomic,readwrite,assign,getter=SSLProvider,setter=setSSLProvider:) int SSLProvider;

- (int)SSLProvider;
- (void)setSSLProvider :(int)newSSLProvider;

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 the platform implementation will be used by default in all cases in the macOS edition.

SSLServerCertEncoded Property (SMTP Module)

This is the certificate (PEM/Base64 encoded).

Syntax

• Swift
• Objective-C

public var sslServerCertEncoded: String {
  get {...}
}

public var sslServerCertEncodedB: Data {
  get {...}
}

@property (nonatomic,readonly,assign,getter=SSLServerCertEncoded) NSString* SSLServerCertEncoded;

- (NSString*)SSLServerCertEncoded;

@property (nonatomic,readonly,assign,getter=SSLServerCertEncodedB) NSData* SSLServerCertEncodedB;

- (NSData*)SSLServerCertEncodedB;

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.

If an error occurs when setting this property an error will not be thrown. This property has a related method which will throw an error:

public func setSSLServerCertEncodedB(sslServerCertEncoded: Data) throws
public func setSSLServerCertEncoded(sslServerCertEncoded: String) throws

SSLStartMode Property (SMTP Module)

Determines how the module starts the SSL negotiation.

Syntax

• Swift
• Objective-C

public var sslStartMode: SmtpSSLStartModes {
  get {...}
  set {...}
}

public enum SmtpSSLStartModes: Int32 {
  case sslAutomatic = 0
  case sslImplicit = 1
  case sslExplicit = 2
  case sslNone = 3
}

@property (nonatomic,readwrite,assign,getter=SSLStartMode,setter=setSSLStartMode:) int SSLStartMode;

- (int)SSLStartMode;
- (void)setSSLStartMode :(int)newSSLStartMode;

Default Value

3

Remarks

The SSLStartMode property may have one of the following values:

Subject Property (SMTP Module)

The subject of the mail message (optional).

Syntax

• Swift
• Objective-C

public var subject: String {
  get {...}
  set {...}
}

@property (nonatomic,readwrite,assign,getter=subject,setter=setSubject:) NSString* subject;

- (NSString*)subject;
- (void)setSubject :(NSString*)newSubject;

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.

Timeout Property (SMTP Module)

A timeout for the module.

Syntax

• Swift
• Objective-C

public var timeout: Int32 {
  get {...}
  set {...}
}

@property (nonatomic,readwrite,assign,getter=timeout,setter=setTimeout:) int timeout;

- (int)timeout;
- (void)setTimeout :(int)newTimeout;

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 .

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.

User Property (SMTP Module)

A user identifier to login as in the MailServer .

Syntax

• Swift
• Objective-C

public var user: String {
  get {...}
  set {...}
}

@property (nonatomic,readwrite,assign,getter=user,setter=setUser:) NSString* user;

- (NSString*)user;
- (void)setUser :(NSString*)newUser;

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.

Config Method (SMTP Module)

Sets or retrieves a configuration setting.

Syntax

• Swift
• Objective-C

public func config(configurationString: String) throws -> String

- (NSString*)config:(NSString*)configurationString;

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.

Connect Method (SMTP Module)

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

Syntax

• Swift
• Objective-C

public func connect() throws -> Void

- (void)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()

Disconnect Method (SMTP Module)

This method disconnects from the SMTP server.

Syntax

• Swift
• Objective-C

public func disconnect() throws -> Void

- (void)disconnect;

Remarks

This method disconnects from the mail relay.

DoEvents Method (SMTP Module)

Processes events from the internal message queue.

Syntax

• Swift
• Objective-C

public func doEvents() throws -> Void

- (void)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.

Expand Method (SMTP Module)

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

Syntax

• Swift
• Objective-C

public func expand(emailAddress: String) throws -> Void

- (void)expand:(NSString*)emailAddress;

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.

Interrupt Method (SMTP Module)

Interrupt the current method.

Syntax

• Swift
• Objective-C

public func interrupt() throws -> Void

- (void)interrupt;

Remarks

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

ProcessQueue Method (SMTP Module)

Sends the messages which have previously been queued into QueueDir .

Syntax

• Swift
• Objective-C

public func processQueue(queueDir: String) throws -> Void

- (void)processQueue:(NSString*)queueDir;

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.

Queue Method (SMTP Module)

Queues the message into QueueDir .

Syntax

• Swift
• Objective-C

public func queue(queueDir: String) throws -> String

- (NSString*)queue:(NSString*)queueDir;

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.

Reset Method (SMTP Module)

Reset the component.

Syntax

• Swift
• Objective-C

public func reset() throws -> Void

- (void)reset;

Remarks

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

ResetHeaders Method (SMTP Module)

Resets all the message headers to empty.

Syntax

• Swift
• Objective-C

public func resetHeaders() throws -> Void

- (void)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.

Send Method (SMTP Module)

Sends the current message.

Syntax

• Swift
• Objective-C

public func send() throws -> Void

- (void)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()

SendCommand Method (SMTP Module)

Sends the exact command directly to the server.

Syntax

• Swift
• Objective-C

public func sendCommand(command: String) throws -> Void

- (void)sendCommand:(NSString*)command;

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.

SendToTerminalAndEmail Method (SMTP Module)

Sends to terminal and email.

Syntax

• Swift
• Objective-C

public func sendToTerminalAndEmail() throws -> Void

- (void)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.

SendToTerminalOnly Method (SMTP Module)

Sends to terminal only.

Syntax

• Swift
• Objective-C

public func sendToTerminalOnly() throws -> Void

- (void)sendToTerminalOnly;

Remarks

This method is similar to Send but requests instead that the message is sent to the user's terminal. 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.

SendToTerminalOrEmail Method (SMTP Module)

Sends to terminal or email.

Syntax

• Swift
• Objective-C

public func sendToTerminalOrEmail() throws -> Void

- (void)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.

Verify Method (SMTP Module)

Sends a Verification request to the SMTP server.

Syntax

• Swift
• Objective-C

public func verify(emailAddress: String) throws -> Void

- (void)verify:(NSString*)emailAddress;

Remarks

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

ConnectionStatus Event (SMTP Module)

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

Syntax

• Swift
• Objective-C

func onConnectionStatus(connectionEvent: String, statusCode: Int32, description: String)

- (void)onConnectionStatus:(NSString*)connectionEvent :(int)statusCode :(NSString*)description;

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 Module)

This event is fired when the message text completes transferring.

Syntax

• Swift
• Objective-C

func onEndTransfer(direction: Int32)

- (void)onEndTransfer:(int)direction;

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 Module)

Fired when information is available about errors during data delivery.

Syntax

• Swift
• Objective-C

func onError(errorCode: Int32, description: String)

- (void)onError:(int)errorCode :(NSString*)description;

Remarks

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

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 Module)

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

Syntax

• Swift
• Objective-C

func onExpand(address: String)

- (void)onExpand:(NSString*)address;

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 Module)

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

Syntax

• Swift
• Objective-C

func onPITrail(direction: Int32, message: String)

- (void)onPITrail:(int)direction :(NSString*)message;

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 Module)

Fired after the server presents its certificate to the client.

Syntax

• Swift
• Objective-C

func onSSLServerAuthentication(certEncoded: Data, certSubject: String, certIssuer: String, status: String, accept: inout Bool)

- (void)onSSLServerAuthentication:(NSData*)certEncoded :(NSString*)certSubject :(NSString*)certIssuer :(NSString*)status :(int*)accept;

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 Module)

Fired when secure connection progress messages are available.

Syntax

• Swift
• Objective-C

func onSSLStatus(message: String)

- (void)onSSLStatus:(NSString*)message;

Remarks

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

StartTransfer Event (SMTP Module)

Fired when the message text starts transferring.

Syntax

• Swift
• Objective-C

func onStartTransfer(direction: Int32)

- (void)onStartTransfer:(int)direction;

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 Module)

Fired while the message text gets transferred to MailServer .

Syntax

• Swift
• Objective-C

func onTransfer(direction: Int32, bytesTransferred: Int64, percentDone: Int32, text: Data)

- (void)onTransfer:(int)direction :(long long)bytesTransferred :(int)percentDone :(NSData*)text;

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.

Firewall Type

The firewall the component will connect through.

Remarks

When connecting through a firewall, this type is used to specify different properties of the firewall, such as the firewall and the .

Fields

Constructors

public init()

Header Type

This is an HTTP header as it is received from the server.

Remarks

When a header is received through a Header event, it is parsed into a Header type. This type contains a , and its corresponding .

Fields

Constructors

public init()

public init(field: , value: )

MessageRecipient Type

This types describes the message recipient.

Remarks

This type describes who the message is sent to. It includes fields to denote the name and email address of the recipient of the message. The type of recipient must also be specified if the class is sending the message.

Fields

Constructors

public init()

public init(address: )

Config Settings (SMTP Module)

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 Module)

SMTP Errors

TCPClient Errors

SSL Errors

TCP/IP Errors