Connections to my postfix+imap server are "blocked" (connection refused).
Turns out the portreserve system is broken... it blocks ports the mail server needs!

for daemon in portreserve clamd cyrus-imapd spamassassin amavisd postgrey postfix
do
/sbin/service $daemon stop
done
for daemon in postfix postgrey amavisd spamassassin cyrus-imapd clamd portreserve
do
/sbin/service $daemon start
done

No