A plugin to think about!

[BritWeb]

Hi

It will be useful to have system like bad word filtering to block dodgy email users right before their details get written into our database. This will be a less headache.

Scammers should not find anything unusual with their registration but they should never get registered.

Thanks

[_CONEJO]

You could ban certain words from even register using ban rules (already in the admin).

If you want some more control, you may be interested in the anti troll plugin : http://forums.osclass.org/plugins/anti-troll-plugin-(in-development)/
Here is the latest version https://github.com/conejoninja/antitroll-plugin
It's a bit outdated, but similar to what you were thinking

[BritWeb]

Brilliant! Thanks, _CONEJO

This will be really useful. I have to stop all these suckers with email addresses ending with .ru, .tv and any other that I consider dodgy.

Regards