clgsoftware
Guppy
I have clients who have repeatedly had email problems. The latest one has many emails sent to him that are rejected. Some senders have notified him and the latest one sent the error message he received:
Unknown user:
RCPT TO generated following response:
550 Rejected by final destination
This was to an email address that was created several months ago. Any information you can provide would be appreciated. He has reached the point of frustration where he wants to look for another host.
Unknown user:
RCPT TO generated following response:
550 Rejected by final destination
This was to an email address that was created several months ago. Any information you can provide would be appreciated. He has reached the point of frustration where he wants to look for another host.