Добрый день.
Dovecot не получает пароль из базы созданной postfixadmin, версия postfixadmin 3.0.2, dovecot 2.2.31.
Я думаю причина прячется где то тут:
driver = mysql
connect = host=172.16.7.3 port=3306 user=postfixadmin password=***** dbname=postfixadmin
default_pass_scheme = MD5-CRYPT
password_query = SELECT password,CONCAT('/mail/', maildir) AS userdb_home, \
'5000' AS userdb_uid, '5000' AS userdb_gid, allow_nets, \
concat('*:bytes=', quota) AS userdb_quota_rule \
FROM mailbox WHERE username='%u' AND domain='%d' AND active=1
user_query = SELECT CONCAT('/mail/', maildir) AS home, 'maildir:~/' as mail, '5000' AS uid, '5000' AS gid,\
concat('*:bytes=', quota) AS quota_rule\
FROM mailbox WHERE username='%u' AND domain='%d' AND active=1
pop3-login: Aborted login (auth failed, 1 attempts in 6 secs): user=<admin@example.com>, method=PLAIN, rip=127.0.0.1, lip=127.0.0.1, secured, session=<>