Hello,

I'm trying to set up a postfix/dovecot server where postfix hands over incoming mail to dovecot using lmtp virtual transport via a Unix socket. Dovecot is then supposed to write the mail to /var/mail/<domain>/<user>/ using a virtual users setup. It seems to work except for failing when the mailbox is supposed to be initially created:

Jun 22 03:25:04 lmtp(2400, dkasak@foo.org): Error: user dkasak@foo.org: Initialization failed: Namespace '': mkdir(/var/mail/foo.org/dkasak) failed: Permission denied (euid=5000(postman) egid=5000(postman) missing +w perm: /var/mail, we're not in group 6(mail), dir owned by 0:6 mode=0775)

As can be seen from the error message, I've set mail_uid and mail_gid to account/group postman. /var/mail/ is empty and owned by root:mail so I've also set mail_privileged_group = mail. I was under the impression that mail_privileged_group is used precisely for these situations (when dotlocking or initial creation of the mailbox fail due to insufficient privileges), but it still doesn't work. If I either set mail_gid = mail, or set mail_access_groups = mail, or create foo.org/ owned by postman:postman by hand, it works as expected.

Here is the complete configuration:

# 2.2.2: /usr/local/etc/dovecot/dovecot.conf # OS: FreeBSD 9.1-RELEASE-p4 i386 ufs base_dir = /var/run/dovecot/ mail_gid = postman mail_location = maildir:/var/mail/%d/%n/:LAYOUT=fs mail_privileged_group = mail mail_uid = postman managesieve_notify_capability = mailto managesieve_sieve_capability = fileinto reject envelope encoded-character vacation subaddress comparator-i;ascii-numeric relational regex imap4flags copy include variables body enotify environment mailbox date ihave namespace inbox { inbox = yes location = mailbox Drafts { special_use = \Drafts } mailbox Junk { special_use = \Junk } mailbox Sent { special_use = \Sent } mailbox "Sent Messages" { special_use = \Sent } mailbox Trash { special_use = \Trash } prefix = separator = / type = private } passdb { args = scheme=CRYPT username_format=%u /etc/dovecot/users driver = passwd-file } plugin { sieve = ~/.dovecot.sieve sieve_dir = ~/sieve } protocols = imap lmtp service auth-worker { user = $default_internal_user } service auth { unix_listener /var/spool/postfix/private/auth { group = postfix mode = 0660 user = postfix } } service imap-login { inet_listener imap { port = 143 } } service lmtp { unix_listener /var/spool/postfix/private/dovecot-lmtp { group = postfix mode = 0660 user = postfix } } ssl = required ssl_cert =

Any ideas?

-- Denis Kasak