On 19.08.25 16:57, Odhiambo Washington via Mailman-users wrote:
On Tue, Aug 19, 2025 at 5:39 PM Sam Darwin via Mailman-users <
[email protected]> wrote:

- "I have found the address among non-members".

That is a significant discovery! It's different from "a spam got sent from
a completely unknown spam address". The address is in the non-member list...

- "obvious spam, but were sent from addresses that I can find in members
and non-members."

Well, "members and non-members" differ.  If you can find them in "members"
then delivery is expected. If you can find them in "non-members" maybe
something unusual is happening.

In this case, something unusual is happening.

I have also configured Mailman to try and detect spam and hold them.

I am tempted to enable emergency moderation while I am trying to figure
this out, but I am beginning with rspamd hardening.

Hopefully someone will help me figure out what is going on.


Did you check the settings  of **Accept these non-members** under **Message Acceptance**.Maybe you have some wildcard entry there.
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