Hello, list !

Dovecot version is 2.2.27, running on Centos 6.7. Postfix is receiving mail and putting it into mailboxes. Dovecot just serves IMAP/POP3 connections to mailboxes. Virtual users are stored in DB. The problem is in directory mode (and thus file mode) for new mailboxes upon it's creation. If I create new record for new mailbox in DB and send mail to it, Postfix will create mailbox properly: Mode is 660, owner is imap:mail in my setup. If I create new record in DB and log in via IMAP for the first time, Dovecot creates mailbox and mode is 600, owner is imap:mail. Postfix cant put mails in tmp or new dirs in mailboxes created by dovecot with mode 600. I need dovecot to create new mailboxes (and files in it) within 660 mode. I tried to play around with "mail_access_groups" and "mail_privileged_group" wih no positive effect. I tried to change value for every "mode=" parameter in dovecot.conf to 660, but no luck.

According to the documentation "Dovecot copies the permissions from the mailbox root directory". My mail_location is maildir:/var/mail/%u Rights for /var/mail/ (the root mail dir) are:

[root@unknown-external-domain ~]# ls -lha /var/mail/

total 24K

drwxrwx--- 5 postfix mail 4,0K Авг 23 14:27 .

drwxrwxr-x 6 root root 4,0K Июл 29 12:18 ..

drwx------ 6 imap mail 4,0K Авг 23 14:28 Administrator

But, as you can see, Administrator's box was created by dovecot with 600 permissions.

I am unable to enforce dovecot to create mailboxes with 660 permissions. Output of dovecot -n is in the attachment.

Please tell me what's the right way to control mailbox permissions ?

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