Afecelis and Niko,
The spambots have discovered your forum. I had a phpBB forum in the past and this also happened to me. It was very annoying.
You have to increase registration security to maximum or the spam will continue and increase, even with guest posting disabled. The spambots make fake registrations that the Captcha security module (visual code confirmation) can't block.
I don't remember other security measures you can implement, but I'm sure you can find some mod in phpBB home page to prevent this.
http://www.phpbb.com/phpBB/catdb.php?cat=57
Maybe this one could work.
http://www.phpbb.com/phpBB/viewtopic.php?t=210055
good luck
phpBB spam problem
I recommend the following mod:
http://www.amigalink.de/phpbb2/download ... ail&id=101
This is a replacement for the old captcha and works very well. No OCR software can recognize the chars at the moment as you can use some different settings...
I use this mod in my forum and there is no bot registration anymore.
Regards - Xaron
http://www.amigalink.de/phpbb2/download ... ail&id=101
This is a replacement for the old captcha and works very well. No OCR software can recognize the chars at the moment as you can use some different settings...
I use this mod in my forum and there is no bot registration anymore.
Regards - Xaron