Re: [libreoffice-users] Bounced messages -- what's that?

At 12:19 22/08/2022 +0300, Pertti T.J. Rönnberg wrote:
> Best LibreOffice gurus,

Er, that's probably not me.

> Approx twice a month since January I've got that 
> mail (on this address only; never before):
> /from: users+owner@global.libreoffice.org/
> /"Hi, this is the Mlmmj program managing the 
> //<users@global.libreoffice.org>//mailing list. 
> Some messages to you could not be delivered. If 
> you're seeing this message it means things are 
> back to normal, and it's merely for your 
> information. Here is the list of the bounced messages: - 57967".///
>
> I am not aware of any missing messages and 
> obviously "things are back to normal".
> My PC (Win10pro, 16GB, AMD Ryzen 7, SSD) seems to work as expected.

It won't be anything to do with your own PC.

> I normally delete this message directly but 
> decided now to ask. Any ideas what this is about ...

I'm guessing here, but I suspect it has to do 
with Domain-based Message Authentication, 
Reporting and Conformance (DMARC); see
https://en.wikipedia.org/wiki/DMARC . In a 
commendable attempt to suppress spam, some mail 
systems collaborate to reject messages which 
originate from systems that are not registered as 
official servers for the sender's domain. 
Messages distributed by mailing lists (such as 
this one) originate form the *list's* mail 
server, and if the From header address remains as 
the original author's, such messages appear to 
have come from an inappropriate server and may be 
rejected by receiving systems. There are various 
ways to circumvent this problem, but this list 
appears not to arrange this successfully. I am 
sending you a private copy of this message as 
well as sending it to the list. My mail provider 
operates DMARC and if - as I'm guessing - yours 
does too, I predict that you will receive the 
private copy but perhaps not a copy distributed 
by the list, as you ought. Many other subscribers may miss it too.

> - and where can I see "message 57967"?

The list help suggests:
"Anyone can retrieve message number N from the 
list's archive by sending a message to 
<users+get-N@global.libreoffice.org> (change the 
N to the number of the desired message)."

You can also consult the archives at
https://listarchives.libreoffice.org/global/users/ or
https://www.mail-archive.com/users@global.libreoffice.org/ .

I note that my own messages to the list fail to 
be included in the second of these archives - no doubt for the same reason.

I trust this helps.

Brian Barker



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