I have an exchange server 2003 on an SBS 2003. When I change the user e-mail adresses in the AD from email@example.com to firstname.lastname@example.org I get following error:
Event Type: Warning
Event Source: POP3 Connector
Event Category: Delivery
Event ID: 1070
An attempt to relay e-mail to recipient <Ruben.email@example.com> was made. The e-mail could not be delivered because the recipient's e-mail domain name does not match any local e-mail domains.
For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp
When i change it back to firstname.lastname@example.org it's impossible to send e-mails to some domains.
I just want to change the reply adress to email@example.com