[Dovecot] logging IMAP username rather than UNIX username

Dale Gallagher dale.gallagher at gmail.com
Wed Oct 22 13:09:12 EEST 2008


My auth section config is:

auth default {
  mechanisms = plain
  passdb checkpassword {
    args = /var/qmail/bin/qmail-vauth
  }
  userdb prefetch {
  }
  user = auth
}

2008/10/22 Dale Gallagher <dale.gallagher at gmail.com>:
> Hi there
>
> I'd like to change my setup to log the _actual_ IMAP user's login,
> rather than the UNIX username. My system uses a virtual uid setup with
> qmail, where the mailboxes are owned by the 'vmail' user and
> authentication is via checkpassword using user%domain (ie email, just
> with % instead of @). So dovecot is recording _all_ logins as:
>
>    imap-login: Login: user=<vmail>, method=PLAIN, rip=127.0.0.1,
> lip=127.0.0.1, secured
>
> I have the following log format specified:
>
>    login_log_format_elements = user=<%u> method=%m rip=%r lip=%l %c
>
> I have also tried:
>
>    login_log_format_elements = user=<%n@%d> method=%m rip=%r lip=%l %c
>
> However, this results in a log file entry of:
>
>    imap-login: Login: user=<vmail@>, method=PLAIN, rip=127.0.0.1,
> lip=127.0.0.1, secured
>
> How do I configure dovecot to log the _actual_ username which the
> client supplies during authentication?
>
> Thanks
> Dale
>


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