Hi, Where can I get examples for the records for the "users" table? For SHA512-CRYPT, I tried: replace into users values ('a@a.com','a.com',ENCRYPT('b', CONCAT('$6$', SUBSTRING(SHA(RAND()), -16))),'',0,0,'true'); schema is: CREATE TABLE `users` ( `username` varchar(255) NOT NULL, `domain` varchar(255) NOT NULL, `password` varchar(255) NOT NULL, `home` varchar(255) NOT NULL, `uid` int(11) NOT NULL, `gid` int(11) NOT NULL, `active` enum('true','false') NOT NULL DEFAULT 'true', PRIMARY KEY (`username`) ) ENGINE=InnoDB DEFAULT CHARSET=utf8 Password_query: password_query = select username, domain,password from users where username='%u' and domain='%d' and active='true' What could I be missing? but logs says user is not found in userdb: Nov 3 22:17:24 fastmail dovecot: auth: Error: sql(a@a.com,127.0.0.1,<JIsTtvsGZwB/AAAB>): user not found from userdb Nov 3 22:17:24 fastmail dovecot: pop3: Error: Authenticated user not found from userdb, auth lookup id=3938844673 (client-pid=10240 client-id=1) Nov 3 22:17:24 fastmail dovecot: pop3-login: Internal login failure (pid=10240 id=1) (internal failure, 1 successful auths): user=<a@a.com>, method=PLAIN, rip=127.0.0.1, lip=127.0.0.1, mpid=10247, secured, session=<JIsTtvsGZwB/AAAB>