New guy here, let's see how good this is. I have already searched previous posts.
I have 2 different physical sites within the same organization. These sites are
connected internally via a T-1 with no firewall between them. Each site has their
own Internet connection. Both sites are part of a single AD forest and single domain.
Each physical site has their own external Internet email domain.
Each Exchange server is self-contained (no Edge servers).
Site1: Orginal site of the orgainization, had Exchange 2000 which I just replaced
with Exchange 2010. Removal of Exchange 2000 and install of Exchange 2010 went fine.
Has a Win 2008 domain controller that is a global catalog. All mailboxes were moved from the
Exchange 2000 server to the Site2-Exchange 2007 server prior to uninstall of Exchange 2000.
All of the decommissioning steps were taken in order to allow for install of Exchange 2010.
Site 2: Has Exchange 2007 SP2 (Rollup 5) server and Win 2003 domain controller that was the first domain controller in the domain.
Site 1-Exchange 2010: EMC see’s all the mailboxes on the Exchange 2007 server, sees the config, etc. I successfully moved a test mailbox from 2007 to 2010. I have also created a new mailbox on 2010.
Problem description: I cannot send email internally from mailboxes on either server to a mailbox on the other server.
Internet email works correctly on both servers.
OWA works on both servers, although I have not yet installed “real” SLL certs for the 2010 server.
Cross server email ends up in the message queue and eventually times out.
I can ping each server from the other by FQDN name.
I have done a tracert to each server from the other, and the route is correct.
I can telnet from each server to the other on TCP port 25, and actually created a message via telnet on each server via SMTP.
I have tried disabling all but the default receive connectors (client & default)on both servers at the same time, restarted both transport services and tried messages again. That did not work either.
I’m sure this is something simple, but I cannot find it. Help.