[Dovecot] Rawlogging uid

[Mikko Lehto]

Hi, this is my first post to the list after years of passive following
every now and then.

Dovecot: 2.0.13 (3d07ab746a67) prebuilt binaries from xi.rename-it.nl
OS: i686 Debian 6.0 squeeze/sid

I am about to run a setup where users are virtual and their mail is owned by
vmail user. I bumped into minor client issue and needed to enable rawlogging
according to http://wiki2.dovecot.org/Debugging/Rawlog

This is what was printed to log at first try:
Jun 29 21:46:25 (null)Fatal: This process must not be run as root

I changed service postlogin to contain "user = vmail" and above
error disapperead. I also tried "user = dovecot" which seem to work
as well.

Is vmail or dovecot user more appropriate for raw logging?
>From wiki I got the impression that user must be same as the effective UID
of logged in user, which in my setup is vmail(121).

Also, maybe the (null)Fatal -message could be improved(?).


# dovecot -n
# 2.0.13 (3d07ab746a67): /etc/dovecot/dovecot.conf
# OS: Linux 2.6.26-1-686 i686 Debian squeeze/sid ext3
auth_debug = yes
auth_verbose = yes
debug_log_path = /var/log/dovecot/debug.log
first_valid_gid = 123
first_valid_uid = 121
info_log_path = /var/log/dovecot/info.log
last_valid_gid = 123
last_valid_uid = 121
lda_mailbox_autocreate = yes
lda_mailbox_autosubscribe = yes
lmtp_save_to_detail_mailbox = yes
log_path = /var/log/dovecot/dovecot.log
mail_debug = yes
mail_location = maildir:/home/vmail/%n/Maildir
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
namespace {
  inbox = yes
  location = 
  prefix = 
  separator = /
  type = private
}
passdb {
  driver = pam
}
plugin {
  sieve = /home/vmail/%n/dovecot.sieve
  sieve_dir = /home/vmail/%n/sieve
  sieve_extensions = +enotify +subaddress +vacation
}
protocols = " imap lmtp sieve"
rejection_reason = Your message to <%t> was rejected: %r
rejection_subject = Mail delivery failed: returning message to sender
service auth {
  unix_listener auth-userdb {
    group = vmail
    mode = 0660
  }
}
service imap {
  executable = imap postlogin
}
service postlogin {
  executable = script-login rawlog
  user = vmail
}
ssl_cert = </etc/ssl/certs/dovecot.pem
ssl_key = </etc/ssl/private/dovecot.pem
userdb {
  args = uid=121 gid=123
  driver = passwd
}
userdb {
  args = uid=121 gid=123 allow_all_users=yes home=/home/vmail/%n
  driver = static
}
protocol lda {
  info_log_path = /var/log/dovecot/lda-info.log
  log_path = /var/log/dovecot/lda.log
  mail_plugins = sieve
}

-- 
Mikko