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Subject: Re: Questions for those who have this information
From: Vivek Khera <khera @ kcilink . com>
Date: Mon, 3 Mar 2003 11:20:35 -0500
To: list-managers @ GreatCircle . com (List Managers)
In-reply-to: <20030302165032.31605.qmail@celery.tssi.com>
References: <20030302165032.31605.qmail@celery.tssi.com>

>>>>> "n" == nolan  <nolan@celery.tssi.com> writes:

>> There is no longer any excuse for not using DSNs.  If sites would
>> use them (and use them correctly) we wouldn't need VERPs, which
>> kill performance unnecessarily.  And we wouldn't need probes to
>> find bad email addresses.

I disagree.  DSN's report the final recipient, not necessarily the
address that is in your mailing list.

n> As most of us have never worked for a major ISP, and are unlikely
n> to do so, perhaps someone could analyze what concerns or problems
n> large ISP's may have with RFC 3464 compliance.

I added some DSN processing to my bounce processor the other day.
Today I'm scanning the logs from it and I see that there are a fair
number of "Action: failed" but "Status: 2.0.0" coming from
netscape.net (and even one from aol.com).

Who in their right mind would generate such a contradictory DSN?  Or
am I misreading the codes and their meanings?

I think it is more programmer laziness/incompetence than spite that
they don't comply with the DSN RFCs (or *any* random RFC).

-- 
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
Vivek Khera, Ph.D.                Khera Communications, Inc.
Internet: khera@kciLink.com       Rockville, MD       +1-240-453-8497
AIM: vivekkhera Y!: vivek_khera   http://www.khera.org/~vivek/


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