Dont delete this folder - folder interal data

My users have complained about receiving this message many times before and we couldnt pin down the root cause. Today i receive one myself. Anyone know where this mysterious messages is coming from any why?

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.

 

The customers who have received the msg are pop3 clients, including myself.

 

I have never used Horde, YUK! We give our users 3 clients to choose from. Squirrelmail, Horde and Neomail. I wonder why 99% of them have chosen to stay with Squirrelmail. So since i have never used Horde i wonder where this msg comes from? Our Squirrelmail users have also reported getting it. Anyone?

 

Yes it does depending how its setup. However im not sure if its a Squirrelmail thing since we saw a couple of these message when Squirrelmail was not installed.

 

HI all

Hi i m facing same problem.
i had more then 8 email account i was using only imap horde.
i have lost all accounts mail.. what was the reason how should i get lost of mails?

From MAILER-DAEMON Jun 22 23:04:42 2006
Date: 22 Jun 2006 23:04:42 -0700
From: Mail System Internal Data <MAILER-DAEMON@servername>
Subject: DON'T DELETE THIS MESSAGE -- FOLDER INTERNAL DATA
Message-ID: <12344@servername>
X-IMAP: 1123265362 0000000053 NonJunk
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.

waiting for reply.