I have inherited an Exchange 2000 server (on Windows 2000) and have not seen this issue before. Actually, it is probably not an issue but the way it has been setup!
So the current confgiuration/situation is:
- SMTP connector that routes * to smtp.ourdomain.co.uk
- DNS - one MX record that points to smtp.ourdomain.co.uk (MX preference 5)
- smtp.ourdomain.co.uk is not Exchange, it is a separate postfix server.
- All service packs and updates are installed for Windows and Exchange
- Forest Functional Level is Windows 2000
- Domain Functional Level is Windows 2000 native
My problem is that all internal mail is sent to the smtp server rather than Exchange just delivering to local mailboxes. So when we had a DNS issue yesterday, internal mail was sitting on the SMTP server for hours before being delivered...
I am looking for help in ensuring I have Exchange and the MX records setup correctly for optimal operation.......I will also be installing a new Exchange 2003 server soon so we will soon have an Exchange 2000 and an Exchange 2003 server. The 2000 server will eventually be decommissioned and then rebuilt with 2003 so we will then have two 2003 servers. I have already ran the forest and domain prep.
any help and direction on this will be greatly appreciated