Master user login attempted without master passdbs

Hi,
I have dovecot version  v2.3.21.1 and my users ([email protected]) are in mysql, all can logon to imap and sending mail, but when I am trying to create and enable sieve scripts from an weblient (horde webmail) it fails with authentication errors. It tries to use master user authentication and the logs are showing following:
A
pr 15 10:34:51 auth: Debug: client in: AUTH	1	PLAIN	service=sieve	secured	session=yTdN4nRPFcF/AAAB	lip=127.0.0.1	rip=127.0.0.1	lport=4190	rport=49429	resp=aG9yc3QAaG9yc3RAaGJzaW1vbi5uZXQAYXVnQDYmOXVzdA== (previous base64 data may contain sensitive data)
Apr 15 10:34:51 auth: Info: plain([email protected],127.0.0.1,<yTdN4nRPFcF/AAAB>): login user: Master user login attempted without master passdbs
Apr 15 10:34:51 auth: Debug: auth([email protected],127.0.0.1,<yTdN4nRPFcF/AAAB>): Auth request finished
Apr 15 10:34:51 auth: Debug: auth client connected (pid=1478)
Apr 15 10:34:53 auth: Debug: client passdb out: FAIL	1	[email protected]
Apr 15 10:34:53 managesieve-login: Info: Disconnected: Connection closed (auth failed, 1 attempts in 2 secs): user=<[email protected]>, method=PLAIN, rip=127.0.0.1, lip=127.0.0.1, secured, session=<yTdN4nRPFcF/AAAB>
Apr 15 10:35:06 auth: Debug: client in: AUTH	1	PLAIN	service=sieve	secured	session=VEgr43RPGMF/AAAB	lip=127.0.0.1	rip=127.0.0.1	lport=4190	rport=49432	resp=aG9yc3QAaG9yc3RAaGJzaW1vbi5uZXQAYXVnQDYmOXVzdA== (previous base64 data may contain sensitive data)
Apr 15 10:35:06 auth: Info: plain([email protected],127.0.0.1,<VEgr43RPGMF/AAAB>): login user: Master user login attempted without master passdbs
Apr 15 10:35:06 auth: Debug: auth([email protected],127.0.0.1,<VEgr43RPGMF/AAAB>): Auth request finished
Apr 15 10:35:06 auth: Debug: auth client connected (pid=1484)
Apr 15 10:35:08 auth: Debug: client passdb out: FAIL	1	[email protected]
Apr 15 10:35:08 managesieve-login: Info: Disconnected: Connection closed (auth failed, 1 attempts in 2 secs): user=<[email protected]>, method=PLAIN, rip=127.0.0.1, lip=127.0.0.1, secured, session=<VEgr43RPGMF/AAAB>

How can I bypass the master user login and use the assigned user or what should the master user be and how to create it?

Thanks and Regards,
Horst
_______________________________________________
dovecot mailing list -- [email protected]
To unsubscribe send an email to [email protected]