SMTPMessageId Property
The id of the mail message (optional).
Data Type
StringDefault Value
""Remarks
This property is used to specify the value of the SMTP MessageId header in the outgoing message. When this property is not set, the task will automatically calculate the MessageId. It is recommended that this property be left blank to allow the task to automatically create the MessageId value unless there is a specific need to define this value.
This property is not available in the Receiver.