I am currently using vb 4.0.3 . I am using image verification question and random question to control bots during registration ..but some how 3-4 bots keeps registering with simila email addresses every day...their email is usually maymieu9@yahoo.com, tutuannu79@yahoo.com, manchan245@yahoo.com, thiepthi55@yahoo.com ..
evyday they register with the same name but different numbers..how can i possibly not let them register.. any help would be highly appreciated...