high amount of spam subscriptions
Hello all,
I have a issue where I am getting a high amount of subscriptions on mailman using the web form.
I found that a option had been added to mailman (SUBSCRIBE_FORM_SECRET). I have added this to my configuration but am still getting large amount of spam subscriptions.
The addresses all tend to be in similar format, user+alias@gmail.com (e.g. knuckles9048+51770730@gmail.com).
For experiment, I blocked email subscriptions to a mailing, to see if the requests are coming from mail or web form.
knuckles9048+51770730@gmail.com Tue Sep 1 14:14:50 2015 knuckles9048+14145395@gmail.com Tue Sep 1 23:06:45 2015
Also 2 for another list (different users). So, now we know that web form is the attack vector.
What can I do to get this under control?
I am running postfix + spamd.
Thanks!
Ben
deepest sympathies. Poor you. Welcome to the club. We've been seeing this recently too. See the thread beginning here: https://mail.python.org/pipermail/mailman-users/2015-August/079627.html
The damn things seem to be adapting, which isn't good.
Laura
On 09/02/2015 09:46 AM, Laura Creighton wrote:
Also see the thread including <https://mail.python.org/pipermail/mailman-users/2015-August/079682.html>.
-- Mark Sapiro <mark@msapiro.net> The highway is for gamblers, San Francisco Bay Area, California better use your sense - B. Dylan
deepest sympathies. Poor you. Welcome to the club. We've been seeing this recently too. See the thread beginning here: https://mail.python.org/pipermail/mailman-users/2015-August/079627.html
The damn things seem to be adapting, which isn't good.
Laura
On 09/02/2015 09:46 AM, Laura Creighton wrote:
Also see the thread including <https://mail.python.org/pipermail/mailman-users/2015-August/079682.html>.
-- Mark Sapiro <mark@msapiro.net> The highway is for gamblers, San Francisco Bay Area, California better use your sense - B. Dylan
participants (3)
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Benjamin Copeland -
Laura Creighton -
Mark Sapiro