(as was described at http://wiki.dovecot.org/moin.cgi/MultipleAuth) auth_debug = yes auth_verbose = yes auth default { mechanisms = plain user = root passdb sql { args = /usr/local/dovecot/etc/dovecot-mysql.conf } passdb pam { args = pop3 } userdb sql { args = /usr/local/dovecot/etc/dovecot-mysql.conf } userdb passwd { } }

If user is virtual and placed in SQL database all works perfectly. But system users can not login: Sep 23 12:27:58 orion dovecot: auth(default): client in: AUTH 1 PLAIN service=POP3 lip=192.168.5.23 rip=192.168.3.2 resp=AGRtaXRyeQBtb240bHVjY2tpdDQ= Sep 23 12:27:58 orion dovecot: auth-worker(default): sql(user,192.168.3.2): query: SELECT password FROM users WHERE login = 'user' Sep 23 12:27:58 orion dovecot: auth-worker(default): sql(user,192.168.3.2): unknown user Sep 23 12:27:58 orion dovecot: auth(default): client out: OK 1 user=user Sep 23 12:27:58 orion dovecot: auth(default): master in: REQUEST 19 50448 1 Sep 23 12:27:58 orion dovecot: auth-worker(default): sql(user,192.168.3.2): SELECT "mbox:/var/mail/virtual//user:INBOX=/var/mail/virtual//user:INDEX=MEMORY" AS mail, 101 AS uid, 101 AS gid FROM users WHERE login = 'user' Sep 23 12:27:58 orion dovecot: auth-worker(default): sql(user,192.168.3.2): User not found Sep 23 12:27:58 orion dovecot: pop3-login: Internal login failure: user=<user>, method=PLAIN, rip=192.168.3.2, lip=192.168.5.23 Sep 23 12:27:58 orion dovecot: child 50447 (auth) killed with signal 11 Sep 23 12:27:58 orion dovecot: auth-worker(default): mysql: Connected to 127.0.0.1 (exim)

It seems to be a bug. This issue dissapears if change the order of auth. databases in dovecot.conf: auth default { mechanisms = plain user = root passdb pam { args = pop3 } passdb sql { args = /usr/local/dovecot/etc/dovecot-mysql.conf } userdb passwd { } userdb sql { args = /usr/local/dovecot/etc/dovecot-mysql.conf } }

-- Kind Regards, Alexander Shikoff minotaur@crete.org.ua Mob.: +380 67 946 31 49