From: Sipos Gabor (g_siposfreemail.hu)
Date: Thu Jun 02 2005 - 02:30:24 CDT

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Hello all,

I was just wondering (since at the current state of debian I'm still
stuck with postfix 1.1) about the spamhaus dnsbl lists. Our internet
connection goes through a governmental firewall, which is also an smtp
gateway. Every mail that tries to get in here goes thru that gateway,
and thus all mails here appear to be coming from their machine (the
first Received: header states that). Also, the firewall consists of at
least 5 machines, so the messages appear to be coming from
fw1.their.dom, fw2.their.dom, etc. The remaining received: headers
are left intact, so viewing the message source I can tell where the
message really originated from.

Will this work with automated tools like spamhaus dnsbl and xbl lists?

Just to be clear: I can do nothing about the firewall, we are
required to use it, just as many other organizations like us. So
reconfiguring it is out of question...

Gabor Sipos

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