The disposable or temporary e-mail service providers provide you with e-mail addresses that expire after few hours or minutes after creating them. Using these e-mail addresses, you can perform sign-ups for not so important registrations which require e-mail address verification. When your verification is done, you can simply discard that e-mail address.
This will help you fight spam as many sites may share your personal data with their sponsors to send you promotional e-mails etc. which are quite annoying when they arrive in your primary mailbox.
These 3 free services listed below provide temporary e-mail addresses that you can easily throw away when your job is done.
