Not able to recieve mail from certain domains. I am running a 2003 SP2 Exchange server. I have a Sonicwall firewall forwarding SMTP traffic to my server. I recently has a complaint the mail was not coming through from a specfic domain. I contacted the mail admin for the domain and had him telnet to port 25 successfully.
They had not got any bounce back messages yet
I am running mail enssentials for my spam filter. I ran a domain report and there is no incoming messages for this domain.