Coupons for products you don’t want. Hot girls that want to see you on a web camera. Money that could be yours if you just provide your account number. We’ve all seen messages like this in our spam or junk email inboxes. Most of them are harmless yet annoying while others can be dangerous scams.One way to fend off these unsolicited messages is to use a disposable email address. But what is that and where do you find one? With a free email service like Mailinator.com, you can prevent spam from getting to your inbox.