Curerntly setting up an Exchange server for a child domain. This is an issue with a new installation of Exchange 2007 on a Server 2003 OS.
I have all pretty much everything configured on the Exchange Server including accepted domains, MX records set up from the domain service provider and mail being sent and received internally to recipients on the same domain. I also have mail being sent out to remote domains such as to hotmail accounts. The problem that I have is that I cannot receive mail from external domains such as hotmail.com. I have used telnet (server) 25 both internally and externally to find that the ports are indeed open. Is there something glaringly obvious I'm missing?
Using zone edit to do a quick smtp test however, shows that there is an error somewhere along the line and I'm not sure what it is or how to find and fix it. Any help would be greatly appreciated.
Thanks for your time