Figure out who's selling your email address Instead of just entering as your email, enter it as username+samplesitecom@gmail.com instead When Gmail sees a "+" in an email address, it uses all the characters to the left of the plus sign to know who to send it to. In this example it would still send it to . If you search Gmail for username+samplesitecom, you will see all massages that were sent to that email address. To see who is responsible for sending a specific message click the Show Details link and you will see the complete address. Quite handy! found it via google on: http://lifehacker.com/software/gmail/figure-out-whos-selling-your-email-address-215174.php btw, i myself use http://www.mailinator.com for dummy short lived email account for all crap site sign ups