Everything was working fine until I did a yum update to get the DST fix as someone indicated on this BB.
Since the update I can no longer send mail externally, internal works fine.
Before I noticed this issue I had a call from one of our branch office employees stating that they could no longer access webmail.
I thought I had fixed that problem by doing a restore of the "horde" directory as before the restore no one coluld logon due to only receiving a blank page and after the restore the logon was back to normal.
So whatever broke webmail also broke the sending of external email.
I see all the messages in the queue since Friday and I need to fix asap if anyone has any ideas.
Thanks in advance ...
BTW I disabled SA just in case but that didn't do anything.