I have been asked to setup a contest.

People submits names.

Is there a way to reject names that have already been submitted.

Simple basics like signing up with a new yahoo account.

Is there any software that coffecup has that can do this?

You could learn php

I dont think CC formbuilder will go check the data from the database for you - but it can put stuff in there....

You know... I think I'll just post the GD names on the contest page so people can see what is already submitted..helping me to weed out hundred of useless submissions..