i guess this could be deleted....

oh these f** spammers... :evil:

Has somebody a good advice on anti-spam-modules for phpBB?

i would say that a visual confirmation should do the trick, but apparently it isn't sufficient.

I found a MOD for phpBB which does a number of checks on the submitting of a form. The overview can be found at the following address:
http://www.phpbb.com/phpBB/catdb.php?cat=57

The MOD-home-page (if that's the correct name) can be found here:
http://www.phpbb.com/phpBB/viewtopic.php?t=210055

there are a few good ones, this one seems to work: http://www.phpbb.com/phpBB/viewtopic.php?t=435694 though I haven't tried it, it's getting good reviews in the discussion.

I use one where new users don't show up on the memberlist until the admin activates, this prevents what you seem to have now, a memberlist filled with spammers' websites. That one is called User Shield and can be found here: http://www.phpbb.com/phpBB/viewtopic.php?t=399863

I've installed a few of the mods using the Easy Mod feature and it is really easy. The User Shield mod in particular has been great, I just delete the users who are spammers before they even show up on the site itself.

Thanks for the hint on User Shield. I just installed it here. Those spammers are really a problem in public forums.

I wonder why there are already 19 inactive users just after executing the last step of installing the mod, but I guess it also detects suspicious usernames and set those to inactive.

What I found is that anyone who had registered on my board but who had not posted before I installed UserShield was included in that "inactive" list. I just went through and checked to see if they had suspicious websites/email addresses, and if so I deleted them. But it seems that's not what's happening on yours, I still see lots of spam sites in the memberlist... The good thing about UserShield is you can do a mass delete based on for example websites that are obviously spam.

BTW I've just found another great mod that seems like it will be very effective to stop spambots from even being able to register in a way that traditional visual confirmation does not, better than the one I posted above. Basically it allows you to either post a code of your choosing somewhere on your site or to ask a question.

Anyway, it's called the VIP mod, I've just installed it, the thread on it over at phpBB is http://www.phpbb.com/phpBB/viewtopic.php?t=435702

Hmm.. I just also set the registration confirmation to "Admin", so I will have to activate them manually. We'll see if that's overkill..