The mailing list for listmasters using Sympa

[Erik Olson <address@concealed>]

Our list has had similar issues.  Gmail implements a de-duplication algorithm based on the message ID, so when the e-mail comes back from the list, it is silently discarded.  There appears to be no setting to override this.

Interestingly, our users only perceive this as a problem when they are originating their own conversation with no replies from others.  The reason is that most folks are seeing "thread view", which mixes their Sent mail in with the received mail but only when there is received mail for that thread.  So as soon as there is another's e-mail from the list, they suddenly see "their post" as well.  It doesn't matter to the user that it's their outbound copy, their perception is "my post went through".

And yes, this problem goes away when rewriting the message in any way that the original message-ID and such are changed.  But that's a big ask in 2021.

  - Erik

On 7/4/2021 1:03 AM, Roel van Meer wrote:

    Hi Tom,
      
      
      I had a similar problem. After reading about it, it seemed the
      proper solution was to implement/configure ARC, but I didn't
      manage to do so properly, so in the end I configured the "New From
      name format" setting in the DKIM/DMARC/ARC section to "List", and
      after that we had no more missed emails. Not ideal, but it worked.
      
      
      YMMV, maybe your issue is something completely different.
      
      
      Best regards,
      
      
      Roel
      
      
      Tom Fillmore writes:
      
      
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>         Hi, all -
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>         I'm struggling with this one...
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>         Some list members with gmail addresses experience the problem of
>         mails they send to a list from gmail are not showing in their
>         gmail inbox after distribution back through the list. Not all
>         gmail users experience this problem.
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>         Example:
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>         A subscriber sends an email to a list from gmail
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>         It is accepted and passed back through the list to that person
>         with a 250 code from gmail (confirmed by reviewing mail logs)
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>         The email they sent is in their sent folder
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>         The email sent back from the list to the subscriber does not
>         show up anywhere in gmail, including trash and spam.
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>         To me this suggests a gmail setting but I can't find anything
>         that would do this.
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>         Any help would really be appreciated.
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>         Thanks!
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>         Tom Fillmore
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>         southern California
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>         The earth is but one country and mankind its citizens...
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>         - Baha'u'llah
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--
Erik Olson address@concealed