[email protected]).You can create an infinite number of variations of your Gmail address to identify spam. While these addresses don't expire on their own, you can set them to auto-delete. The Plus (+) Trick : Add a plus sign and any word after your username (e.g., yourname+spam@gmail.com ). Emails sent to this will still land in your main inbox. The Dot (.) Trick : Gmail ignores periods in usernames. y.o.u.r.n.a.m.e@gmail.com is treated the same as yourname@gmail.com The "googlemail.com" Trick : You can swap @gmail.com @googlemail.com yourname@googlemail.com How to make these "temporary": Sign up for a service using an alias like yourname+temp@gmail.com In Gmail settings, create a for mail sent "To" that specific alias.