What version of 68 Classifieds are you running? v4.2.2 Developer What template are you using? SigmaSilver Please describe in detail the issue you are having: Looks like starting on 8/21/2011 there have been dozens of fake user registrations per day. They are coming from several different IPs and are registering two different street addresses. They are using bad email addresses and causing a lot of bounced emails to the admin. How do I stop these new fake registrations?
Try the recaptcha module offered by 68C for free. If you want something less robust but more delicate (I mean design wise) you can do this type of thing to at least annoy robots Customizations - 68 Classifieds Forums
If you want something that seems to work and blend nicely then look here at these posts. http://www.68classifieds.com/forums/customizations/10794-little-anti-spam.html