Mbox format / reclassifying messages

[Laurence]

I run bogofilter with -u so it automatically registers messages in the
wordlist.  I set myself up a way of being able to reclassify messages with
only webmail access - I have three folders ("mv H2S", "mv U2H" and "mv U2S")
that I move incorrectly classified messages to.  A cron job checks for
messages and reclassifies them.

The mbox format (at least on my machine) can have a dummy first message that
stores "important folder data". ;)  I noticed when my reclassify script
first ran it reported a count of two messages when I had only moved one into
the folder.  Looking through my wordlist I can see entries that look like
they come from this dummy first message.

An example message is:

--- start ---
Date: 24 Sep 2003 12:29:49 +0100
From: Mail System Internal Data MAILER-DAEMON@***removed***
Subject: DON'T DELETE THIS MESSAGE -- FOLDER INTERNAL DATA
X-IMAP: 1064402989 0000000000
Status: RO

This text is part of the internal format of your mail folder, and is not
a real message.  It is created automatically by the mail system software.
If deleted, important folder data will be lost, and it will be re-created
with the data reset to initial values.
--- end ---

Should bogofilter ignore this message when importing from mbox files if it's
present?

Laurence