I am still having problems with my exchange deployment. For some reason I still can not get any mail sent from other domains (I.E. Gmail.com, etc.) to actually be received exchange. My current e-mail system is some no name brand IMAP e-mail. After setting up Exchange and making the receive connectors One for Client port 587 and the other for default on ports 25 and 143.
My Firewall currently has the following ports forwarded to the DMZ (where the current email server is):
50636 - Edge Transport
110 - pop3
25 - SMTP
993 - Imap4d-ssl
995 - Pop3d-ssl
I critiqued my firewall to point all of those ports into my LAN Directly to the IP address of my exchange server and still nothing.
I also created port 143 and forwarded it to the exchange server and still nothing.
When I change everything back to face the old email system within 5 to 10 minutes the email I sent from gmail appears... Thoughts?
Am I missing something?