AW: MS Exchange delivery notifications

Using a whitelist does not really help.  The delivery notifications are
coming from various mail hosts.  There are obviously lots of MS Exchange
system out on the net.  env_From is always empty.  mail_host is always
empty, I do not know why this is the case.  Here is an example of a logged
message:

	VERSION: 3
	DATE: 01/22/03 11:24:29 CET
	IP: mail.mm-packaging.com ::ffff:195.61.168.114
	HELO: mail.mm-packaging.com
	env_From: <>  mail_host=
	...

There are a bunch of different delivery messages from different mail hosts
with the same Fuz2 checksum.  But this does not seem to be a rule.  So
adding the checksum to the whitelist will not solve the issue.

Regards,
Ludger 



-----Ursprüngliche Nachricht-----
Von: Sven [mailto:sven@dmv.com]
Gesendet: Mittwoch, 22. Januar 2003 14:37
An: DCC@rhyolite.com
Betreff: Re: MS Exchange delivery notifications



----- Original Message -----
From: "Bolmerg-Berliner Ludger - Munich-MR" <lbolmerg@munichre.com>
To: <DCC@rhyolite.com>
Sent: Wednesday, January 22, 2003 7:45 AM
Subject: MS Exchange delivery notifications


> Hi,
>
> I am experiencing a problem receiving MS Exchange delivery notifications.
> The fuz2 checksum calculated for these messages seems always to be
different
> but has a count that forces the message to be rejected.
> Does anybody have an idea for a workaround?
>

Use a whitelist. The delivery notifications, do they have a consistent
"From" line or do they come from a consistent mail host or two? Whitelisting
the env_from or mail_host may be the way to go ...

Sven

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