From MAILER-DAEMON Sat Oct  2 09:28:28 1999
Date: Sat, 2 Oct 1999 09:28:28 +0300 (EETDST)
From: Mail System Internal Data <MAILER-DAEMON@mit.jyu.fi>
Subject: DON'T DELETE THIS MESSAGE -- FOLDER INTERNAL DATA

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.