I have just rebuilt my mail server on freebsd version 7.2. Out of the box it was working. However, after a reboot I could not receive maiil. When I use the simscan queue I get a 451 mail server temporarily rejected message error for all mail. However, checking /var/log/mail/smtp/current the mail is received fine into the server - ( CHKUSER accepted rcpt: from ... etc).
If I switch the queue to qmail-queue in tcp.smtp all is fine and the mail is received. But no clam or spamd of course.
So what is the next step to check? Any ideas.