Two copies of recent posts

Reindl Harald h.reindl at thelounge.net
Thu Nov 26 07:24:36 UTC 2020


Am 26.11.20 um 03:01 schrieb Mark Andrews:
> The message that generated this thread had the following:
> 
> To: upendra.gandhi at gmail.com
> Cc: bind-users <bind-users at lists.isc.org>, BIND Users <bind-users at isc.org>
> 
> Note the 2 different addresses for bind-users.  Both where delivered to lists.isc.org in a single SMTP
> transaction as you noted (ESMTP id 026B967ED73) because the MTA worked out they both needed to be delivered to the same server.  They where then sent through 2 different instances mailman.  One for bind-users at lists.isc.org
> and one for bind-users at isc.org and re-injected (ESMTP id B380C67F367 and ESMTP id E414B67F36E).

why is it that both exists when the system isn't capable of *basic* 
"suppress_duplicates = yes"?

that's also annoying in context of sieve / mua filters

>> On 26 Nov 2020, at 12:35, Paul Kosinski via bind-users <bind-users at lists.isc.org> wrote:
>>
>> Yes indeed: I sent the last email (and this one) to bind-users and CC-ed to you. That explains why there are two different ESMTP IDs.
>>
>> The question is, have you, like I have, received two copies of any emails (from lists.isc.org) where there *identical* ESMTP IDs in their associated sequences of "Received:" headers. This would indicate that the duplication was caused by an intermediate MTA. (The one I previously indicated was mx.pao1.isc.org, which is the one and only MX for lists.isc.org.)
>>
>> On Tue, 24 Nov 2020 22:46:06 -0500
>> Jim Popovitch via bind-users <bind-users at lists.isc.org> wrote:
>>
>>> On Tue, 2020-11-24 at 22:22 -0500, Paul Kosinski wrote:
>>>> My reading of the headers (below) does *not* suggest "Reply All".
>>>>
>>>> Rather, they show that mx.pao1.isc.org sent/forwarded the email once,
>>>> and it was received by lists.isc.org once with ESMTP ID 026B967ED73.
>>>> But then lists.isc.org resent/forwarded it more than once, as it was
>>>> received a few seconds later by lists.isc.org (again!) with two
>>>> *different* ESMTP IDs: B380C67F367 and E414B67F36E.
>>>>
>>>> This suggests to me that lists.isc.org is being a bit too diligent in
>>>> delivering its email.
>>>>
>>>
>>> I just received 2 copies of your post, with 2 different ESMTP IDs...
>>> because you sent it to 2 different recipients.  That same thing would
>>> happen if you sent it to bind-users at lists.isc.org and
>>> bind-users at lists.isc.org.



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