FAQ
I have a Mailman 2.1.9 Uncaught bounce notification:

From: <>
To: LISTNAME-bounces at example.com
Subject: Returned mail: unreachable recipients:gingehen at wicc.weizmann.ac.il

The original message was received at Thu Nov 8 14:58:21 2007

Likely reason for failure: 550 5.1.1 <gingehen at wicc.weizmann.ac.il>... User unknown

Why was this not caught as a standard 550 rejection? Is it because the
initial mail received a 250 return code

to=<gingehen at wicc.weizmann.ac.il>,
relay=mail-gate2.weizmann.ac.il[132.77.4.177]:25,
status=sent (250 Requested mail action okay, completed)

and then the mail was rejected? But it is not the Mailman machine that
has the smart SMTP mailer; I send all Mailman mail via Postfix to
another machine for delivery.
----------------------------------------------------------------------
Barry S. Finkel
Computing and Information Systems Division
Argonne National Laboratory Phone: +1 (630) 252-7277
9700 South Cass Avenue Facsimile:+1 (630) 252-4601
Building 222, Room D209 Internet: BSFinkel at anl.gov
Argonne, IL 60439-4828 IBMMAIL: I1004994

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  • Mark Sapiro at Nov 9, 2007 at 2:08 am

    Barry Finkel wrote:
    I have a Mailman 2.1.9 Uncaught bounce notification:

    From: <>
    To: LISTNAME-bounces at example.com
    Subject: Returned mail: unreachable recipients:gingehen at wicc.weizmann.ac.il

    The original message was received at Thu Nov 8 14:58:21 2007

    Likely reason for failure: 550 5.1.1 <gingehen at wicc.weizmann.ac.il>... User unknown

    Why was this not caught as a standard 550 rejection? Is it because the
    initial mail received a 250 return code

    No. It is because the DSN is not an RFC 1894/RFC 3464 compliant DSN and
    it is not one of the many non-compliant formats that Mailman 2.1.9
    recognizes.

    I am right now in the process of trying to wrap up the 2.1.10 beta
    release and the last thing on my list is adding recognition for more
    non-standard DSNs (I have a collection).

    Please send me off list the complete DSN from the uncaught bounce
    notification, and I'll try to get it in the set that 2.1.10 recognizes.

    BTW, I realize that it is trivial for a human to look at one of these
    (at least the ones that are in a language the human reads - they
    aren't all in English) and determine that it is a notice of a
    permanent failure and what the failed address is, but there are still
    things (such as recognizing DSNs and spam) that humans are much better
    than software at doing.

    --
    Mark Sapiro <msapiro at value.net> The highway is for gamblers,
    San Francisco Bay Area, California better use your sense - B. Dylan

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postedNov 8, '07 at 5:27p
activeNov 9, '07 at 2:08a
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