When we run similar competitions, we check their email (required to contact winners, therefore probably valid and real)against a database, and just don't add it if it's a duplicate. Then we carry on as if it was OK, "Thank you for your entry...." etc.
We don't mind if cheats want to waste their time trying to enter a dozen or so. -----Original Message----- From: Bruce Sorge [mailto:[EMAIL PROTECTED] Sent: Friday, February 23, 2007 3:51 PM To: CF-Talk Subject: Best way to restrict only one registration I am looking for the best way to keep someone from registering in a sweepstakes only once. What do you all recommend? I was thinking of using a GUID but these are machine specific, right? I was also thinking of making it so that when they enter their information I can check it against the database and if there is a match, let them know they already registered. But then again all they have to do is start over and enter information again. Maybe using a special code or something? Thanks, Bruce ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~| Create Web Applications With ColdFusion MX7 & Flex 2. Build powerful, scalable RIAs. Free Trial http://www.adobe.com/products/coldfusion/flex2/ Archive: http://www.houseoffusion.com/groups/CF-Talk/message.cfm/messageid:270612 Subscription: http://www.houseoffusion.com/groups/CF-Talk/subscribe.cfm Unsubscribe: http://www.houseoffusion.com/cf_lists/unsubscribe.cfm?user=89.70.4
