Disposable email address
Disposable email addressing, also known as DEA or dark mail, refers to an approach which involves a unique email address being used for every contact, entity, or for a limited number of times or uses.
The benefit is that if anyone compromises the address or utilizes it in connection with email abuse, the address owner can easily cancel (or "dispose" of) it without affecting any of their other contacts.
Uses
Disposable email addressing sets up a different, unique email address for every sender/recipient combination.
It operates most usefully in scenarios where someone may sell or release an email address to spam lists or to other unscrupulous entities.
The most common situations of this type involve online registration for sites offering discussion groups, bulletin boards, chat rooms, online shopping, and file hosting services. At a time when email spam has become an everyday nuisance, and when identity theft threatens, DEAs can serve as a convenient tool for protecting Internet users.