[LAD] Signing up disabled for all mailing lists

Dear all,

Unfortunately I had to disable signing up for all linuxaudio.org mailing 
lists. This is due to a flood of fake accounts being created that send 
out subscription confirmations which sometimes get flagged as spam. This 
in turn leads to so-called Feedback Loop complaints from the abuse team 
of our hosting service (Hetzner). If we get too much of those we risk 
getting our mail traffic blocked or ending up on a RBL (Realtime Blacklist).

So at the moment new subscriptions can only be done manually through me. 
This is very inconvenient of course so if anyone knows a better way to 
shield Mailman3 against bots creating fake accounts then please contact 
me, thanks in advance!

Best regards and happy holidays!!!

Jeremy
linuxaudio.org admin
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