Some of postfix logs are missing from both /var/log/mail.log and /var/log/syslog. The missing log lines are from qmgr and smtpd. Those two services were running in chroot, but then Viktor Duchovni suggested I run them unchrooted, which I did. I change master.cf file accordingly (putting the n in the right column) and restarted both postfix and rsyslog but the lines are still missing.
What do you suggest ?
1. Discussion on postfix mailing list : http://marc.info/?l=postfix-users&m=148888501908461&w=2