>> # ls -Rl /home/mail/public/
>> /home/mail/public/:
>> total 0
>> drw-rw---- 5 mail mail 184 Jul 19 10:08 Harm
>> drw-rw---- 5 mail mail 184 Jul 19 10:08 Spam
>> -rw-rw---- 1 mail mail 0 Jul 19 09:55 dovecot-shared
>> -rw-rw---- 1 mail mail 0 Jul 19 09:55 subscriptions
Maybe find /home/mail/public -type d -exec chmod 770 {} \;
will help?
-Remy