Alan Cooper wrote:

> We have a customer who is making fairly heavy use of message filtering 
> (approximately 50 rules) to filter out his email.
> 
> On a fairly regular basis, a substantial number of blank emails appear 
> in the destination folder (Unknown sender, (no subject) for subject and 
> 0K in size)
> 
> Has anyone seen this before and is there a resolution?

I see many of these on several Linux/Sendmail/Cyrus IMAP server. As far
as I could determine, they are actual deliveries of completely empty
mails. Perhaps some malfunctioning spammer tool or worm, as they do tend
to crop up mainly on accounts who also get a lot of maltraffic.

-- 
Tilman Schmidt                            [EMAIL PROTECTED]
Phoenix Software GmbH                             Tel. +49 228 97199 0
Adolf-Hombitzer-Str. 12                           Fax +49 228 97199 99
53227 Bonn, Germany                      http://www.phoenixsoftware.de


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