I recently moved our Windows 2003 SBS from our office location to a datacenter with completely different IP Address and Network information. I changed the IP info manually and everything except Exchange seems to be fine. Exchange can send email out and receive local email (like administrative log reports) but mail from external sources is not getting through.
I'm using the same firewall we had at the office with all the necessary ports open to allow external mail in. Is there something simple I'm missing?
Has anyone else ran into a similar issue when moving a Windows 2003 SBS?