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Version: 2006-07-23 (debian - 07/07/09)

Section: 1 (Commandes utilisateur)


qmail2dlf - convert sanitized qmail-send logs to dlf




qmail2dlf reads qmail-send logs from stdin, writes dlf to stdout, and, in case of errors, complains on stderr.


We expect timestamps which look like e.g. `977359048.466280500' in our log: number of seconds since the epoch, in any precision. The log should feature lines which look something like:
  982584201.511524 info msg 6426: bytes 3537 from 
    <> qp 21089 uid 70

splogger, as distributed with qmail, writes `a numerical timestamp', ie something like 972802273.627578, indicating seconds and nanoseconds since the beginning of 1970.

multilog, as distributed with daemontools,, if invoked with action t, writes a `@' and a tai64n format timestamp. These timestamps look like e.g. 4000000039ef8532346bb35c. Note that 0x400000000000000000000000 is 2^62.

One can get the current time in tai64 format by doing:

  echo 40000000`(echo obase = 16; date +%s) | bc`00000000

(assuming GNU date is installed)

To convert tai64n to numerical timestamps, one can use Russ Allbery's tai64nfraq. It's in the public domain, available from


To process a log as produced by splogger:
  $ lr_desyslog qmail < mail.log | qmail2dlf

To process a log as produced by multilog:

  $ tai64nfrac < current | qmail2dlf

qmail2dlf(1) will be rarely used on its own, but is more likely called by lr_log2report:

  $ tai64nfrac < /service/qmail-send/log/main/current | \
      lr_log2report qmail


We don't deal with bounces:
  email qmail none qmail2dlf info skipping line '986244190.800217 bounce msg 
   6306 qp 28445': first field should be one of 'new', 'info', 'starting', 
   'delivery', 'end' or 'status:', not 'bounce'

qmail2dlf doesn't use any information from the qmail-smtpd(1) logs. (These look like

  2002-06-16 09:34:57.798038500 tcpserver: pid 19385 from
  2002-06-16 09:34:58.114198500 tcpserver: ok 19385



$Id:,v 1.24 2006/07/23 13:16:34 vanbaal Exp $ Copyright (C) 2000, 2001 Stichting LogReport Foundation

This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program (see COPYING); if not, check with


Joost van Baal <>
Je n'ai pas aimé son message, je l'ai donc effacé
et j'ai viré franzfritz69.
-- Jayce - Et oui ! C'est la vie ! --