Email address(s) where replies to the message should be sent.
def get_message_reply_to() -> str: ...
message_reply_to = property(get_message_reply_to, None)
This property contains the email address(s) where replies to the message should be sent. There are cases when a message may have more than one Reply-To address. If this is the case, the addresses are provided in this property separated by commas.
This property is read-only.