Am 27.03.26 um 11:54 schrieb Stefan G. Weichinger via dovecot:

I am in the process of upgrading and rewriting my config.

I can access IMAP etc ... so my database access is working.

I have issues with LMTP: postfix can't deliver to dovecot.

The postfix-confiog wasn't touched at all.

the error:

Mar 27 11:46:37 co dovecot: auth([email protected]): Error: userdb: client doesn't have lookup permissions for this user: userdb reply doesn't contain uid (to bypass this check, set: service auth { unix_listener /run/dovecot/auth-userdb { mode=0777 } })


What I don't understand: I configure this:

service auth {
   unix_listener /var/spool/postfix/private/auth {
     group = postfix
     mode = 0666
     user = postfix
   }
}
service auth-worker {
   user = postfix
}
service lmtp {
   user = vmail
   unix_listener /var/spool/postfix/private/dovecot-lmtp {
     group = postfix
     mode = 0660
     user = postfix
   }
}

protocol lmtp {
   mail_plugins = sieve
   postmaster_address = [email protected]
}

And in postfix:

virtual_transport = lmtp:unix:private/dovecot-lmtp

virtual_uid_maps = static:5000
virtual_gid_maps = static:5000
local_transport = virtual
local_recipient_maps = $virtual_mailbox_maps

smtpd_sasl_auth_enable = yes
smtpd_sasl_type = dovecot
smtpd_sasl_path = private/auth


Where does "/run/dovecot/auth-userdb" come from?

I understand that according to my config /var/spool/postfix/private/auth should be used?

ls /var/spool/postfix/private/auth -l
srw-rw-rw- 1 postfix postfix 0 Mar 27 11:45 /var/spool/postfix/private/auth

ls /var/spool/postfix/private/dovecot-lmtp  -l
srw-rw---- 1 postfix postfix 0 Mar 27 11:45 /var/spool/postfix/private/ dovecot-lmtp

I think I have it, at least it works now.

I added this block from 2.3 ...

service auth {
  client_limit = 1200
  unix_listener auth-client {
    group = postfix
    mode = 0660
    user = postfix
  }
  unix_listener auth-userdb {
    mode = 0777
  }
  user = root
}

I assume the 0777 etc aren't ideal.

Suggestions welcome.

But my basic setup seems to work now!

(thanks to all devs for their work, even when it's sometimes hard to keep up ...)




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