I'm pretty sure that this comes from Proofpoint's "URL Defense" system. (Google it.) But I don't understand what you mean by "hostile listname" being "correct". What comes before the __ is usually a URL, and there is also a __ BEFORE the url begins. If you use a graphical mail client (like gmail), you don't see this extra junk, but if you click the url that you see, Proofpoint will check it to see if it is on a list of nasty sites. If you want to see the URL alone with a text client (like mutt), I suggest running all messages through .procmailrc with this recipe:
:0 f | /usr/bin/sed -e "s/__/ /g"
This will replace __ with spaces, leaving the url itself standing alone.
Jon
On 08/18/21 15:15, David Gibbs via Mailman-Users wrote:
Folks:
Is anyone else seeing requests to their mailman install that look something like this:
Aug 18 15:10:16 2021 (31166) Hostile listname: listname=midrange-l__;!!NVq9dfhzMyHqTw!wLl-dt8zxsuQuoyojs-UYmT_d65WZroClHaYGfHduJ561eT0B7baTQV1ogZzQKRRsw$: remote=52.34.76.65
Basically, the list name is correct, but the added "__;!NV..." makes it invalid.
The pattern is rather consistent ... "__;!NV" followed by a bunch of garbage.
Thanks!
David
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