messageId (property)
The Message Identifier for the message.
Syntax
@property (nonatomic,readwrite,assign,getter=messageId,setter=setMessageId:) NSString* messageId; - (NSString*)messageId; - (void)setMessageId:(NSString*)newMessageId;
public var messageId: String { get {...}
set {...} }
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.