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Re: A real bounce between GMX and bendel.debian.org

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On 10/10/2021 17:18, Thomas Schmitt wrote:
> Hi,
>
> although i seem not to be worth to be targeted by our bounce assassin,
> my mail provider and bendel.debian.org are at odds enough to produce
> a real bounce message, which then causes a warning mail from
> listmaster@lists.debian.org .
>
> I am trying to make sense out of the given bounce report
>
>    https://lists.debian.org/bounces/79gUBBa56gHKY3wtHzNKdg
>
> It is hard to distinguish the hearsay by bendel.debian.org from the
> message parts which come from my provider's server mx00.emig.gmx.net.
> Especially i wonder from where bendel takes the association to my
> mail address (and which mentionings show its conclusions about my
> address).
>
> Whatever, the reason for the bounce is that GMX accuses debian-user
> of not meeting its requirements
>    https://www.gmx.net/mail/senderguidelines
> All points there look like they are not volatile problems but rather
> persistent ones. But listmaster@lists.debian.org wrote i had
>>   1 bounce out of 68 mails in one day (1%, kick-score is 80%)
> So why did the other 67 succeed ?

That seems unrelated to the OVH bounces.

My mailserver bounced the same email (and I got a warning like that). 
Since I run my own mailserver, and can look at the logs and see exactly 
why it has been rejected, and here's what I got:

2021-10-10 16:07:37 1mZeAb-0005Mc-Hn H=bendel.debian.org 
[2001:41b8:202:deb:216:36ff:fe40:4002] 
X=TLS1.3:ECDHE_SECP256R1__RSA_PSS_RSAE_SHA256__AES_256_GCM:256 CV=no 
F=<bounce-debian-user=eduardo=kalinowski.com.br@lists.debian.org> 
rejected after DATA: header syntax (malformed address: >\n may not 
follow Pierre-Elliott =?utf-8?Q?B=C3=A9cue?= <peb@debian.org>: failing 
address in "From:" header is: Pierre-Elliott =?utf-8?Q?B=C3=A9cue?= 
<peb@debian.org>>): malformed address: >\n may not follow Pierre-Elliott 
=?utf-8?Q?B=C3=A9cue?= <peb@debian.org>: failing address in "From:" 
header is: Pierre-Elliott =?utf-8?Q?B=C3=A9cue?= <peb@debian.org>>

And this is From header:

From: Pierre-Elliott =?utf-8?Q?B=C3=A9cue?= <peb@debian.org>>

(There does seem to be an extra > in there.)


In this case, my server bounced a mail, and so the listserver is correct 
in sending me that notification. And since it was just one email, I did 
not get unsubscribed.

However, perhaps the listserver should have not accepted that email with 
the (possibly) invalid From header in the first place.

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Thread

A real bounce between GMX and bendel.debian.org "Thomas Schmitt" <scdbackup@gmx.net> - 2021-10-10 22:20 +0200
  Re: A real bounce between GMX and bendel.debian.org "Thomas Schmitt" <scdbackup@gmx.net> - 2021-10-10 22:50 +0200
  Re: A real bounce between GMX and bendel.debian.org Eduardo M KALINOWSKI <eduardo@kalinowski.com.br> - 2021-10-11 03:10 +0200
    Re: A real bounce between GMX and bendel.debian.org "Thomas Schmitt" <scdbackup@gmx.net> - 2021-10-11 10:20 +0200
    Re: A real bounce between GMX and bendel.debian.org Brian <ad44@cityscape.co.uk> - 2021-10-11 14:00 +0200
    Re: A real bounce between GMX and bendel.debian.org Cord Beermann <cord@debian.org> - 2021-10-13 11:20 +0200
  Re: A real bounce between GMX and bendel.debian.org Joe <joe@jretrading.com> - 2021-10-11 09:50 +0200
  Re: A real bounce between GMX and bendel.debian.org Andrei POPESCU <andreimpopescu@gmail.com> - 2021-10-11 12:50 +0200

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