The server port for SMTP (default 25).
def get_mail_port() -> int: ... def set_mail_port(value: int) -> None: ...
mail_port = property(get_mail_port, set_mail_port)
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 ssl_start_mode property for more information).