A disposable email address sets a different and unique email address for each sender / recipient combination. It is most useful in scenarios where someone might sell or publish an email address for spam lists or other fraudulent individuals. The most common situations of this type are associated with online registration of sites offering discussion groups, message boards, chat rooms, online stores, and file hosting services. At a time when email spam is becoming a daily problem and the threat of identity theft arises, DEA can serve as a handy tool to protect Internet users.
Disposable email accounts are not permanent as you will find with Gmail, Outlook.com, Yahoo, etc. They are also usually anonymous email accounts, which means you can sign up without giving your name, phone number, home address, etc.
You can use a disposable email address if you sign up for a user account that you will only use temporarily or are sure you won’t even need to read emails.
For example, you’ll want to avoid using a disposable address for your bank account, as you might need bank statements or access a recovery email if you’ve forgotten your password.
Temp email addresses can be canceled if someone starts using the address differently than the creator intended. Examples: accidentally sending an email to the spam list or if the address was received by spammers. Alternatively, the user may simply decide not to receive further correspondence from the sender.