[Dovecot] Strange config behaviour while using /etc/dovecot/auth.d/somename.auth

While using Ubuntu 10.10 + Dovecot 1.2.12 + Postfix 2.7.1-1:

To export the authentication interface to Postfix, besides the usual smtpd_sasl_* lines at postfix, I am using: the following /etc/dovecot/auth.d/somename.auth file: socket listen { client { path = /var/spool/postfix/private/auth-client mode = 0660 user = postfix group = postfix } }

But after restarting dovecot and doing a 'sudo dovecot -n' I get: ... socket: type: listen client: path: /var/spool/postfix/private/auth-client mode: 432 user: postfix group: postfix

As 660<>432, is this Dovecot 1.2.12's expected behaviour?

Thank you.

M.