A handy tool called “Spambox”.

Many websites ask for your e-mail address to download software or to register. But you don’t know what they’ll be doing with your e-mail.. Your e-mail will probably be stored in a database which will then be resold to spammers and you will be receiving unsolicited bulk e-mail. I’ve stumble upon a handy tool that is handy enough to handle spams on your mailboxes. This is called Spambox with this tool you can create a temporary e-mail address that will forward all incoming mail to your usual e-mail address.
Simply enter your e-mail address and the life time of your spambox and they will generate you a temporary @spambox.us e-mail.
Spambox create for you a temporary e-mail address that will expire in the time you chose, all the mails directed to this e-mail will be transparently forwarded to your real e-mail.
For example, you need to register on a forum that requires e-mail verification, so you generate a spambox e-mail with an expiry of one hour. The generated e-mail will expire in an hour, way enough for the Forum to send you the verification code. And don’t you worry they will not collect your e-mail add and sell it to spammers.Yes, they could be, but they’re not doing it. They’ve got an automatic cleanup agent that wipes out every n-minutes the expired spambox e-mails. Try it! It’s a free source of tools for you to use.
Spambox.us – All Computers.co