Mail delivery failed: returning message to sender

Create: 2017-10-13
Update: 2017-11-20
Score: 1
Safe: Yes

This message was created automatically by mail delivery software. A message that you sent could not be delivered to one or more of its recipients. This is a permanent error. The following address(es) failed: 2513278332@txt.att.net host mx3a.txt.att.net [166.216.149.129] SMTP error from remote mail server after RCPT TO:: 550 5.1.1 recipient does not exist here.

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