Re: LDA ignores virtual mailbox settings

*From:* Toni Mueller [mailto:support@oeko.net] *Sent:* Monday, December 28, 2020, 3:18 AM *To:* Aki Tuomi *Cc:* dovecot@dovecot.org *Subject:* LDA ignores virtual mailbox settings

Hi Aki,

thanks for your quick response!

On Sun, Dec 27, 2020 at 10:00:40PM +0200, Aki Tuomi wrote:

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On Sun, Dec 27, 2020 at 09:18:25PM +0200, Aki Tuomi wrote:

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16:04:16 dovecot: auth: Debug: master in:USER#0111#011user@example.com#011service=lda 16:04:16 dovecot: auth: Debug: prefetch(user@example.com): passdb didn't return userdb entries, trying the next userdb 16:04:16 dovecot: auth: Debug: sql(user@example.com): SELECT '/path-to-mailboxen/' || virtual_users.home AS home, uid , gid , quota as quota_rule FROM virtual_users WHERE email = 'user@example.com' AND status = 'A' 16:04:16 dovecot: auth: Debug: userdb out:USER#0111#011user@example.com#011home=/path-to-mailboxen/example.com/user#011uid=12345#011gid=12345#011quota_rule=*:storage=0

^^^^^^^^^^^^^^^^^^^^^^

This shows that the database lookup works. The intended effect should be that the message is delivered to

/path-to-mailboxen/example.com/user/Maidir/new

16:04:16 dovecot: lda(user@example.com)<5291>: Error: setegid(privileged) failed: Operation not permitted 16:04:16 dovecot: lda(user@example.com)<5291>: Error: Mailbox INBOX: open(/var/mail/user@example.com) failed: Permission denied (euid=12345(mailbox) egid=12345(mailbox) missing +w perm: /var/mail, we're not in group 8(mail), dir owned by 0:8 mode=0775)

^^^^^^^^^^^^^^^^^^^^^^

And this shows that dovecot-lda just ignores the result.

16:04:16 dovecot: lda(user@example.com)<5291>: Error: Mailbox INBOX: Failed to autocreate mailbox: Mailbox INBOX: open(/var/mail/user@example.com) failed: Permission denied (euid=12345(mailbox) egid=12345(mailbox) missing +w perm: /var/mail, we're not in group 8(mail), dir owned by 0:8 mode=0775) 16:04:16 dovecot: lda(user@example.com)<5291>: msgid=20201226224933.014608@laptop.example.com: save failed to open mailbox INBOX: Mailbox INBOX: Failed to autocreate mailbox: Mailbox INBOX: open(/var/mail/user@example.com) failed: Permission denied (euid=12345(mailbox) egid=12345(mailbox) missing +w perm: /var/mail, we're not in group 8(mail), dir owned by 0:8 mode=0775) 16:04:16 postfix/pipe[5284]: 8CD6CE072E: to=user@example.com, orig_to=userA@example2.com, relay=dovecot, delay=62083, delays=62083/0.04/0/0.04, dsn=4.3.0, status=deferred (temporary failure)

In /etc/postfix/master.cf, I have this to call it:

dovecot unix - n n - - pipe flags=DRhu user=_mailbox argv=/usr/lib/dovecot/deliver -f ${sender} -d ${user}@${domain} -a ${recipient}

Try adding

mail_privileged_group = mail I am not sure why you recommend this. I never ever want to deliver to /var/mail, and my mailbox directory has group 'mailbox' - hence I have

mail_privileged_group = mailbox

in my configuration.

My question is why this thing wants to deliver to /var/mail, despite having a different location from the userdb, and how I can force it to use the location from the userdb.

Thanks, Toni Sorry, I misread your problem..

can you try checking output of

doveadm user <username> # doveadm useruser@example.com field value uid 12345 gid 12345 home /path-to-mailboxen/example.com/user mail maildir:~/Maildir:INBOX=~/Maildir quota_rule *:storage=0

...

and

doveadm auth lookup <username> # doveadm -v auth lookupuser@example.com passdb:user@example.com user :user@example.com

...

Also, including doveconf -n would be useful. # 2.3.4.1 (f79e8e7e4): /etc/dovecot/dovecot.conf # Pigeonhole version 0.5.4 () # OS: Linux 4.19.0-13-amd64 x86_64 Debian 10.7 # Hostname: testvm.example.com auth_debug = yes auth_debug_passwords = yes auth_failure_delay = 0 auth_mechanisms = plain login auth_verbose = yes auth_verbose_passwords = plain deliver_log_format = msgid=%m: %e -> %{to_envelope} %p %w %{delivery_time} %{storage_id} %{secured} disable_plaintext_auth = no login_access_sockets = tcpwrap mail_debug = yes mail_location = maildir:~/Maildir:INBOX=~/Maildir mail_privileged_group = mailbox 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 index ihave duplicate mime foreverypart extracttext namespace inbox { inbox = yes location = maildir:~/Maildir:INBOX=~/Maildir 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 = } passdb { args = /etc/dovecot/dovecot-sql.conf.ext driver = sql } plugin { expire = Trash 30 Spam 30 quota = maildir quota_rule = *:storage=50000 quota_rule2 = Trash:ignore sieve =file:~/sieve;active=~/.dovecot.sieve sieve_dir = ~/sieve trash = /etc/dovecot/dovecot-trash.conf } protocols = pop3 imap service auth { unix_listener /var/spool/postfix/private/auth { group = postfix mode = 0660 user = postfix } } service imap-login { inet_listener imap { port = 0 } } service tcpwrap { unix_listener login/tcpwrap { group = $default_login_user mode = 0600 user = $default_login_user } } ssl = no ssl_cert =

Thank you!

-Toni

Hi Toni,

Try this:

  mail_home = /path-to-mailboxen/%d/%n mail_location = maildir:~/Maildir:LAYOUT=fs

and

namespace inbox { separator                 = / prefix                    = inbox                     = yes subscriptions             = yes list                      = yes type                 = private hidden                    = no }