While I'm not 100% clear on how dovecot handles permissions, would the fix not be to set mail_access_groups=mail?
Per http://wiki2.dovecot.org/Errors/ChgrpNoPerm Otherwise your default mail_location can not work unless it writes the files as root or something. This doesnt seem to be the case judging from the permission errors reported earlier. -- To UNSUBSCRIBE, email to debian-bugs-rc-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org