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[Debian]:Re: procmail: dupes in Mailinglisten?

Jens Benecke <jens@pinguin.conetix.de> wrote:

> es gab doch mal eine Möclichkeit, procmail zum Verschlucken von
> doppelten Message-IDs, z.B. von Mailinglisten zurückgeschickten
> selbst verfaßten Mails zu bringen.

> Ich habe leider weder in /usr/doc noch in man etwas gefunden. Kann
> mich jemand mal mit der Nase drauf stoßen?

> Roland? ;-)

Erstmal natürlich der Hinweis, daß Du schlecht in den man pages
gesucht hast ;-)
Und dann ein Auszug aus procmailex(5):

       If  you  are subscribed to several mailinglists and people
       cross-post to some of them, you  usually  receive  several
       duplicate mails (one from every list).  The following sim­
       ple recipe eliminates duplicate mails.  It  tells  formail
       to  keep an 8KB cache file in which it will store the Mes­
       sage-IDs of the most recent  mails  you  received.   Since
       Message-IDs  are  guaranteed  to  be  unique for every new
       mail, they are ideally suited to weed out duplicate mails.
       Simply put the following recipe at the top of your rcfile,
       and no duplicate mail will get past it.

              :0 Wh: msgid.lock
              | formail -D 8192 msgid.cache

       Beware if you have delivery problems in recipes below this
       one  and  procmail  tries to requeue the mail, then on the
       next queue run, this mail will be considered  a  duplicate
       and will be thrown away.  For those not quite so confident
       in their own scripting capabilities, you can use the  fol­
       lowing  recipe  instead.  It puts duplicates in a separate
       folder instead of throwing them away.  It is up to you  to
       periodically empty the folder of course.

              :0 Whc: msgid.lock
              | formail -D 8192 msgid.cache

              :0 a:
              duplicates

Tschoeeee

        Roland

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