SMTP Authのログを出力する方法

# grep DEBUG /etc/courier-imap/imapd
##NAME: DEBUG_LOGIN:0
# DEBUG_LOGIN=0   - turn off login debugging
# DEBUG_LOGIN=1   - turn on login debugging
# DEBUG_LOGIN=2   - turn on login debugging + log passwords too
DEBUG_LOGIN=0
[root@localhost courier-imap]# grep DEBUG /etc/courier-imap/pop3d
##NAME: DEBUG_LOGIN:0
# DEBUG_LOGIN=0   - turn off login debugging
# DEBUG_LOGIN=1   - turn on login debugging
# DEBUG_LOGIN=2   - turn on login debugging + log passwords too
DEBUG_LOGIN=0

# for s in authdaemon imapd imaps pop3d pop3s ; do service courier-$s restart ; done

http://kb.parallels.com/en/112316