message_id Property
The Message Identifier for the message.
Syntax
def get_message_id() -> str: ... def set_message_id(value: str) -> None: ...
message_id = property(get_message_id, set_message_id)
Default Value
"*"
Remarks
This property contains the Message Identifier for the message. When set, the value of message_id 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.