The mailing list for listmasters using Sympa

[IKEDA Soji <address@concealed>]

Hi Sabine,

On Thu, 15 Apr 2021 08:31:18 +0000
"Lorenz, Sabine (SCC)" <address@concealed> wrote:

> Hi Soji,
> 
>  
> 
> The corresponding lines from the header of an affected email look like this 
> (I changed the name of the list and the email-addresses a bit):
> 
>  
> 
> Return-path: <address@concealed>
> 
> Envelope-to: address@concealed
> 
> Delivery-date: Tue, 23 Mar 2021 14:49:08 +0100
> 
> Received: from scc-mailin-cn-01.scc.kit.edu ([141.52.226.150])
> 
>         by lists3.scc.kit.edu with esmtp (Exim 4.89)
> 
>         (envelope-from <address@concealed>)
> 
>         id 1lOhPA-0006MF-OA; Tue, 23 Mar 2021 14:49:08 +0100
> 
> …
> 
> To: Bachelor-Studierende <address@concealed>,
> 
> Master-Studierende <address@concealed>
> 
> From: Gerd Lang address@concealed 
> <mailto:address@concealed> 
> 
>  
> 
>  
> 
>  
> 
> The e-mail was thus sent from the address 
> <address@concealed>.
> 
> This email was too big for the list and therefore Sympa did not accept the 
> email.
> 
> In the Sympa log (unfortunately I don't have this file now, since it's been 
> more than 7 days), only the address address@concealed is used 
> as the sender of the email, and Sympa sends the delivery error to that 
> address as well.
> 
> This delivery error is then rejected by the mail server of the University 
> of Halle with the error message "550 missing BATV signature".
> 
> In my view, the delivery error should actually be sent to the address 
> <address@concealed>, so that the e-mail is 
> also accepted by the mail server of the University of Halle.

I don't know why the error message was sent to the "From:" address
of original message.

Please show the logs of (1) Sympa, (2) MTA of mailinglist server and
(3) MTA of University's mail server, during delivery of [1] original
message and/or [2] error message sent by Sympa.


Regards,
-- Soji


> Kind regards and thanks for any help,
> 
> Sabine
> 
>  
> 
>  
> 
>  
> 
>  
> 
> Von: Hatuka*nezumi - IKEDA Soji <address@concealed> 
> Gesendet: Mittwoch, 14. April 2021 15:53
> An: Lorenz, Sabine (SCC) <address@concealed>
> Cc: address@concealed
> Betreff: Re: [sympa-users] Error messages are sent by Sympa to the From 
> address instead of Return Path address
> 
>  
> 
> Hi Sabine,
> 
>  
> 
> Could you please show the message in question, especially ts From header 
> field and its return path?
> 
>  
> 
> Regards,
> 
> — Soji
> 
>  
> 
> 
> 
> 
> 
> 2021/04/13 16:49、Lorenz, Sabine (SCC) <address@concealed 
> <mailto:address@concealed> >のメール:
> 
> 
> 
> Hallo, 
> 
> 
> 
> 
> we have the problem that sometimes delivery errors sent by our Sympa 
> server, e.g. if an email is too large, are rejected by the users' mail 
> servers with the error message "550 >> missing BATV signature".
> 
> While searching for the reason for this problem, we noticed that Sympa does 
> not send the delivery errors to the e-mail address that is entered as the 
> return path in the original e-mail address, but to the address that is 
> entered as the from address.
> 
>  
> 
> In this example, the e-mail was sent from an e-mail address of the form 
> address@concealed 
> <mailto:address@concealed> , but the 
> delivery error from Sympa was sent to the address 
> address@concealed 
> <mailto:address@concealed>  entered in the From field. 
> This email was then rejected by the receiving mail server with the error 
> message "550 >> missing BATV signature".
> 
>  
> 
> In the Sympa docs, on the 
> https://sympa-community.github.io/gpldoc/man/sympa_config.5.html page, I 
> find the parameter sender_headers, which apparently allows you to configure 
> which value Sympa considers to be the sender address. The default value for 
> this parameter is From. 
> 
> Does this make sense? I would actually expect the actual sender address or 
> return path address to be used at this point.
> 
>  
> 
> As a test, I set the sender_headers parameter to Return-Path,From in the 
> Sympa config, but this did not change the fact that the delivery error from 
> Sympa is sent to the From address.
> 
> After that I set the parameter sender_headers to From, but after that error 
> message "No sender found in message" appeared in the log for emails to the 
> Sympa lists and the emails were not distributed over the lists, so I undid 
> this change.
> 
>  
> 
> My questions now is:
> 
> What can I do to make Sympa send the delivery errors to the email address 
> entered as the return path in the original email address instead of the 
> address entered as the from address?
> 
>  
> 
> We are currently using Sympa version 6.2.16 and Sympa is installed as a 
> Debian package.
> 
>  
> 
> Thanks for any help,
> 
> Sabine
> 
>  
> 
>  
> 
>  
> 
>  
> 
>  
> 
>  
> 
> ----------
> 
> Karlsruher Institut für Technologie (KIT)
> Steinbuch Centre for Computing (SCC)
> 
> Sabine Lorenz
> 
> Hermann von Helmholtz Platz 1
> 76344 Eggenstein-Leopoldshafen
> 
> Telefon: +49 721 608-28633
> E-Mail:  <mailto:address@concealed> address@concealed
>  <http://www.kit.edu/scc-Adresse> www.kit.edu/scc
> 
> Sitz der Körperschaft:
> Kaiserstraße 12, 76131 Karlsruhe
> 
> KIT – Die Forschungsuniversität in der Helmholtz-Gemeinschaft
> Das KIT ist seit 2010 als familiengerechte Hochschule zertifiziert.
> 
> <image001.png>
> 
>  
> 


-- 
株式会社 コンバージョン
ITソリューション部 システムソリューション1グループ 池田荘児
e-mail address@concealed
https://www.conversion.co.jp/