I am trying to send email to an alias I created in a user account. Whether I use the alias or a universal distribution list, I get the same error. (See below for error message.)
itsupport@<clientdomain>.com on 10/1/2007 3:46 PM
There was a SMTP communication problem with the recipient's email server. Please contact your system administrator.
<mailserver.mydomain.com #5.5.0 smtp;554 Sorry, no mailbox here by that name. (#5.1.1)>
I've looked in the Event logs for all DC's in my client's domain, and there is no file replication or Active Directory error message. I have also tried forcing replication from within the Active Directory Sites and Services tool.
I have a mixed-mode AD, with Win 2000 and Win 2003 DC's. Email is Exchange 2000. What am I missing?