[Dovecot] Deliver prints passwort to the syslog

Hi, I've got the problem that dovecot's deliver prints the authentification information to the syslog.

Like this: Sep 18 12:11:22 mail deliver(user@domain.tld): auth input: user=user@domain.tld Sep 18 12:11:22 mail deliver(user@domain.tld): auth input: password=XXXX Sep 18 12:11:22 mail deliver(user@domain.tld): auth input: home=/home/mail/domain.tld/user Sep 18 12:11:22 mail deliver(user@domain.tld): auth input: uid=8 Sep 18 12:11:22 mail deliver(user@domain.tld): auth input: gid=8

I guess that it's only a configuration option but right now I can't figure out which one I need to change to turn this off.

Any help would be appreciated. Thanks in advance.

Best Regards Dominik