mail problem

billybob01

Hi all, i have just installed an exchange 2003 server next to my old 2000 server and have moved over a couple of mailboxes, but when testing the email, i have found that all external mail is being stuck in the queue, i can receive mail comming in, but cannot send mail.

mbarra

Check the firewall settings, Had this issue today installing Sonicwall ES300. Firewall was blocking port 25 smtp from all but old Exchange IP addresss.

billybob01

Sorted the problem, good old DNS issue.