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CheckMessageId rejecting mail

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Bleve

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Oct 29, 2010, 4:19:58 PM10/29/10
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G'day,
I'm seeing this from a legitimate (but possibly poorly implemented,
it's exchange by the looks of it) MTA :

Oct 25 11:13:34 rollcage2 sendmail[10447]: o9P0DYwS010447:
from=<XXXXX@XXXXXX>, size=4949, class=0, nrcpts=1,
msgid=<5E0E4242D7483443B970...@WIC002EBCLV3.exchange.server-
login.com>, proto=ESMTP, daemon=MTA-v4, relay=bne3-0002mrc.server-
mail.com [203.147.156.26] (may be forged)

Oct 25 11:13:37 rollcage2 sendmail[16815]: o9P0DYwS010447:
ruleset=CheckMessageId, arg1= <F869E211-DF8E-4845-A927-D7B123E0F977>,
relay=bne3-0002mrc.server-mail.com [203.147.156.26] (may be forged),
reject=553 5.0.0 <Y...@ZZZ.COM>... Header Error

The mail's ok and I want to receive it. My system is NetBSD with
sendmail from pkgsrc - 8.14.4 at this time.
Firstly, can anyone suggest why it's being blocked? A bit of a google
for 553 errors suggested that it's a dodgey message ID, but how can I
allow that through?

thanks!

Carl

Claus Aßmann

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Oct 30, 2010, 12:49:45 AM10/30/10
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Bleve wrote:

> login.com>, proto=ESMTP, daemon=MTA-v4, relay=bne3-0002mrc.server-
> mail.com [203.147.156.26] (may be forged)

So the "MTA" has a broken DNS setup.

> ruleset=CheckMessageId, arg1= <F869E211-DF8E-4845-A927-D7B123E0F977>,
^^^^^^^^^^^^^^^^^^^^^^

And some luser uses broken SW that does not follow the RFCs...

message-id = "Message-ID:" msg-id CRLF
msg-id = [CFWS] "<" id-left "@" id-right ">" [CFWS]

> Firstly, can anyone suggest why it's being blocked? A bit of a google
> for 553 errors suggested that it's a dodgey message ID, but how can I
> allow that through?

Disable the CheckMessageId header check. That is not default,
so either it's been added by the local postmaster or by the
OS maintainer.

D. Stussy

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Oct 31, 2010, 2:14:37 AM10/31/10
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"Claus Aßmann" <ca+sendmail(-no-copies-please)@mine.informatik.uni-kiel.de>
wrote in message news:iag859$hre$1...@obelix.informatik.uni-kiel.de...

Actually, it would be better if the sender fixed his message generation so
as to generate a proper MID.


Bleve

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Oct 31, 2010, 10:50:16 PM10/31/10
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On Oct 30, 3:49 pm, Claus Aßmann <ca+sendmail(-no-copies-

Done. Thanks Claus!

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