that's really a good hint, and I hope, that it will also solve the same problem at my site!
Any idea, how to get and save the IP-address of those, who want to register?
Often the spammer come from special countries, and it may be an additional possibility to block them by .htaccess.
Or compare the IP-address with country-lists? This might make it possible to check, if the post-address is real.
Or does anyone know, how to block the registration by the used email (.ru,.cn...)?
It's really necessary to improve the security of Joomla and VM! A few weeks ago a hacker destroyed 5 of my Domains on 1und1-host by posting a well-known virus to the server using Joomla or VM. The hosters do not check servers for viruses. So prevention is the only way..
Have a nice day