no mail receiving with pop3 and different UPN

[Guest_imported]

I added another UPN to my domain, I configured several users to use the new UPN suffix. But from that moment on, these users couldn't receive mail anymore. The server collected the mail from the several pop3 accounts but didn't deliver this mail to the corresponding user.

What can be my problem?

 

[Guest_imported]

I am having the same problem, our server just stopped delivery to the corresponding user for no reason that I can see though.

Anyone out there with any help???

 

[mortenrasmussen]

Hello,
Funny thing. I've setup an Exchange server it all worked fine. I have another "normal" POP3/SMTP mail server to which the MX record points at mydomain.dk.
So what I did was having the normal mailserver to forward all mail to a user at the exchange-server and then delete it afterwards on the POP3/SMTP server.
Everything worked fine - until now. Suddenly all mail delivery to some users have stopped... I don't know why.

Seems unstable....this Exchange.?

/Morten