{4}: The e-mail message was damaged or altered. As a result, the recipient's e-mail system that is responsible for validating or decrypting the message was unable to do so. Try creating a new message and sending it again.
The e-mail message exceeded the maximum message size allowed by the recipient mailbox. The sender should make the e-mail ...
The e-mail message exceeded the maximum message size allowed by the recipient's e-mail system. Reduce the size of the e-mail ...
The e-mail message format was corrupted and could not be delivered. The sender should try creating a new message and sending ...
The e-mail message was corrupted or altered, and the recipient e-mail system that is responsible for validating or decrypting ...
The e-mail message was damaged or altered. As a result, the recipient's e-mail system that is responsible for validating ...
The e-mail message was rejected by the recipient e-mail system. This code indicates a generic incorrect e-mail address issue. ...
The e-mail message was rejected by the recipient's e-mail system. This code indicates an incorrect e-mail address was used. ...
The e-mail system is experiencing delays. Several messages may be affected. The system will continue trying to deliver this ...
The e-mail system issued a protocol command with invalid arguments. The sender can try sending the e-mail message again later. ...