Hacking /Spam Attempts?!?!

Solutions for other phpList version 2 users
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Please do not ask questions here, this is for Solutions you have discovered or come across.

Postby H2B2 » 4:07am, Thu 09 Nov, 2006

Very interesting article. I took the liberty of posting an excerpt of it at mantis.

Thanks for submitting the link!
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Postby fralenuvol » 11:40pm, Wed 15 Nov, 2006

After installing Phplists on my server, I was spammed with fake subscriptions about 200 a day with emails like john123@yahoo.com, all with domain yahoo.com, so I read all posts in this thread to find a solution.

The custom code I put at beginning of accesscheck.php is the following:
Code: Select all
$valid_user_agent = isset($_SERVER["HTTP_USER_AGENT"]) && $_SERVER["HTTP_USER_AGENT"] != "";
$valid_referrer = isset($_SERVER["HTTP_REFERER"]) && strpos($_SERVER["HTTP_REFERER"],$_SERVER['SERVER_NAME']);

I know this is trivial compared to all considerations I read in this very instructive topic, but since ALL spam on my server stopped, I just wanted to share it in case somebody else is having the same trouble.
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Method to foil bots

Postby DeweyW » 3:55am, Tue 03 Apr, 2007

I added an attribute/field (hidden) to my submit form. How can I tell phpList to ignore any entries that has anything in that field?

I can go through the members section and delete anyone that has an entry in that field, but I would lie the program to do that automagically.

It seems this thread was active until November but hasn't been updated and no solution was posted. Any help here?
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Postby H2B2 » 4:14am, Tue 03 Apr, 2007

Version 2.10.4 includes an (experimental) spam blocking feature, which is enabled by default.
Ref: http://tincan.co.uk/?lid=1868
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Postby clee991 » 10:11am, Tue 03 Apr, 2007

And I might add ... spam blocking in 2.10.4 works GREAT!!Stops spam subscriptions cold and no false alarms yet either.
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Postby jsherk » 8:57pm, Tue 27 May, 2008

Here's another alternative for preventing spammers from reaching your subscribe pages:
http://forums.phplist.com/viewtopic.php?t=18290
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