Собственно вот что нарылось, а где искать error log ?
сразу скажу, ЛДАП домен у меня lab1c.com и официально такого нет
А интернет домен 1clab.com - такой есть!
И что такое Invalid Credentials?
[root@gradientgate ~]# grep dovecot /var/log/messages Dec 20 15:11:31 gradientgate dovecot: dovecot startup succeeded
Dec 21 09:42:06 gradientgate dovecot: dovecot startup succeeded
Dec 22 15:35:01 gradientgate dovecot: sending signal 1 to dovecot succeeded
Dec 22 15:35:02 gradientgate dovecot: sending signal 1 to dovecot succeeded
Dec 22 15:35:02 gradientgate dovecot: Warning: Last died with error (see error log for more information): Time just moved backwards by 3599 seconds. This might cause a lot of problems, so I'll just kill myself now. http://wiki.dovecot.org/TimeMovedBackwards
Dec 22 15:35:02 gradientgate dovecot: dovecot startup succeeded
Dec 24 03:19:37 gradientgate dovecot-auth: pam_ldap: error trying to bind as user "uid=admin,ou=People,dc=lab1c,dc=com" (Invalid credentials)
Dec 24 03:19:41 gradientgate dovecot-auth: pam_ldap: error trying to bind as user "uid=admin,ou=People,dc=lab1c,dc=com" (Invalid credentials)
Dec 24 03:23:27 gradientgate dovecot-auth: pam_ldap: error trying to bind as user "uid=admin,ou=People,dc=lab1c,dc=com" (Invalid credentials)
Dec 24 15:17:10 gradientgate dovecot: dovecot shutdown succeeded
Dec 24 16:19:06 gradientgate dovecot: dovecot startup succeeded
Dec 24 16:22:00 gradientgate dovecot: dovecot startup succeeded