I'm having big problems with my mail server. My Postfix mail queue doesn't seem to be getting processed anymore and messages seem to be placed in hold queue indefinitely.
If I run "postsuper -H ALL" the queue is released and when I restart Postfix the messages are delivered. However, the same thing starts all over again straight afterwards.
I've had to manually process the mailq for the past couple of hours and haven't been able to figure out the problem.
This problem may have started last night after I updated Debian, but I'm not sure - it could just be a coincidence. Here's the update:
Any help would be greatly appreciated as always!