Message delivery failed because the message's content type was incorrect. A non-delivery report (NDR) is being sent to the message's originator.
Message delivery failed because the message content was either missing or does not have the correct X.400 class. A non-delivery ...
Message delivery failed because the message content was either missing or does not have the correct X.400 class. A non-delivery ...
Message delivery failed because the message envelope was missing. A non-delivery report (NDR) is being sent to the message's ...
Message delivery failed because the message envelope was missing. A non-delivery report (NDR) is being sent to the message's ...
Message delivery failed because the message's content type was incorrect. A non-delivery report (NDR) is being sent to the ...
Message delivery failed because the message's content type was incorrect. A non-delivery report (NDR) is being sent to the ...
Message delivery failed because the recipient was invalid. A non-delivery report is being sent to the message's originator. ...
Message delivery failed because the recipient was invalid. A non-delivery report is being sent to the message's originator. ...
Message delivery failed because the recipient's mailbox has recently been deleted. A non-delivery report (NDR) is being sent ...