mail_extra_groups=mail setting is often used insecurely to give Dovecot
access to create dotlocks to /var/mail directory. If you don't use
mboxes in /var/mail, make sure this setting is cleared.
If you do use /var/mail mboxes and Dovecot gives permission errors
without it, do one of the following (...
access to create dotlocks to /var/mail directory. If you don't use
mboxes in /var/mail, make sure this setting is cleared.
If you do use /var/mail mboxes and Dovecot gives permission errors
without it, do one of the following (...
[ more ]