Horton

Re: BUG #18822: mailing lists reject mails due to DKIM-signature

Stefan Kaltenbrunner <stefan@kaltenbrunner.cc>

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From: Stefan Kaltenbrunner <stefan@kaltenbrunner.cc>
To: Matthias Apitz <guru@unixarea.de>
Cc: Bruce Momjian <bruce@momjian.us>, Matthias Apitz <gurucubano@googlemail.com>, Tom Lane <tgl@sss.pgh.pa.us>, pgsql-bugs@lists.postgresql.org, Magnus Hagander <magnus@hagander.net>, Greg Sabino Mullane <htamfids@gmail.com>
Date: 2025-02-26T15:48:24Z
Lists: pgsql-bugs 
Hi Matthias!


On 26.02.25 15:59, Matthias Apitz wrote:
> El día miércoles, febrero 26, 2025 a las 03:14:16 +0100, Stefan Kaltenbrunner escribió:
> 
>> On 25.02.25 15:30, Matthias Apitz wrote:
>>> El día martes, febrero 25, 2025 a las 03:03:33p. m. +0100, Stefan Kaltenbrunner escribió:
>>>
>>>> Hi Matthias!
>>>>
>>>> On 25.02.25 14:30, Matthias Apitz wrote:
>>>>> My provider informed me and I see that they modified the DKIM signing
>>>>> to:
>>>>>
>>>
>>> How this depends of the mail recipient addr?
>>
>> I dont think it does depend on the recipient
>> address - the signature of the mails you are
>> sending now is fine - I suspect you simply had a
>> c&p error in your mail...
> 
> Hi Stefan,
> 
> I double checked it: sending to my company account gives correct DKIM,
> sending to me the broken one.

so if I have to make a very wild guess I would think that your ISP runs 
a multi-stage MTA setup - one set of boxes responsible for 
relaying/sending externally and one set of boxes for local delivery - 
maybe the configuration change was only applied for mail that is sent 
externally/relayed over them and not for mail sent to local mailboxes.



Stefan