You can ignore messages, they are actually good (and fixing a long-standing
problem we had).

Let me explain why:
Lots of listadmins have had their membership disabled due to "bounce going
over threshold" (see this mailing list for lots of people complaining). The
issue is simple. Lots of spammers send spam or virus or phishing emails to
*-owner@ which mailman happily forwards to listadmins. But your server
(e.g. Gmail), actually rejects those emails (some go to spam but lots of
them don't even get accepted) and with the rejection notice, mailman (also
happily) increases your bounce score and disables your membership if it
passes the threshold.
What we did to fix it is that once you pass the threshold, mailman sends a
probe email to your account and if that gets received then it doesn't
disable your membership (hopefully reduces your bounce score, but not sure)
and the server rejects the probe mail, then mailman disables the account
for good.

TLDR: Don't worry, it's okay.
HTH


On Fri, Nov 19, 2021 at 12:50 PM Deryck Chan <[email protected]> wrote:

> Hello listadmins,
>
> I've been getting these mailing list probe messages from mailman
> regularly. What I suspect might be a problem, is that the message says "a
> sample is attached below", but there is no sample bounce message.
>
> Is mailman firing off random probe messages? Or is it forgetting to attach
> a bounce message that my email provider sent it?
>
> --Deryck
> (listadmin of wikimania-l and wikimedia-asia-chapters)
>
> ---------- Forwarded message ---------
> From: [redacted]
> Date: Thu, 18 Nov 2021 at 07:54
> Subject: Wikimania-l mailing list probe message
> To: <[email protected]>
>
>
> This is a probe message.  You can ignore this message.
>
> The [email protected] mailing list has received a number
> of bounces from you, indicating that there may be a problem delivering
> messages to [email protected].  A sample is attached below.  Please
> examine this message to make sure there are no problems with your
> email address.  You may want to check with your mail administrator for
> more help.
>
> You don't need to do anything to remain an enabled member of the
> mailing list.
>
> If you have any questions or problems, you can contact the mailing
> list owner at
>
>     [email protected]
> _______________________________________________
> Listadmins mailing list -- [email protected]
> To unsubscribe send an email to [email protected]
>
> To request technical changes for a specific list, please instead create a
> task in Phabricator. See https://meta.wikimedia.org/wiki/Mailing_lists



-- 
Amir (he/him)
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