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[mills@cc.umanitoba.ca: Zmailer MTA breaks with DCC greylisting]
Here's a further message on ZMailer interoperability with the DCC
(Distributed Checksum Clearinghouse described at
"http://www.rhyolite.com/anti-spam/dcc/"). Based on preliminary
testing, ZMailer 2.99.55 shows the erroneous behaviour described by
Gary Mills but 2.99.56 correctly retries messages that are
"temporarily embargoed" by DCC's greylisting.
----- Forwarded message from Gary Mills <mills@cc.umanitoba.ca> -----
From: Gary Mills <mills@cc.umanitoba.ca>
To: dcc@rhyolite.com
Subject: Zmailer MTA breaks with DCC greylisting
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Date: Tue, 23 Mar 2004 22:09:15 -0600
We had a complaint recently from a small university that was running
the Zmailer MTA. At this end, e-mail from them was rejected by DCC
greylisting with a temporary delivery failure code. There was no
sign of delivery re-tries. At their end, the e-mail just disappeared,
without even a non-delivery report.
Adding their mail server to our greylist whitelist allowed the e-mail
to get through. Apparently, Zmailer was treating the temporary delivery
failure as a successful delivery! I don't know what version they are
running, but they are planning to upgrade to the latest version, in the
hope that that will fix the problem.
--
-Gary Mills- -Unix Support- -U of M Academic Computing and Networking-
_______________________________________________
DCC mailing list DCC@rhyolite.com
http://www.rhyolite.com/mailman/listinfo/dcc
----- End forwarded message -----
--
Roy Bixler <rcb@ucp.uchicago.edu>
The University of Chicago Press
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