I am able to send and receive email on the local server as well as receive email from external hosts. I am unable to send mail to external hosts. I did try setup a relay but they are rejected as well. This al worked with 10.6 server but as soon as I did the upgrade it has been down.
Any help or recommendations would be welcomed!
Mac mini, OS X Server, 16 GB Ram OSX 10.8.2 server