Shuffle’s New iPhone App Lets You Create Disposable Phone Numbers and Email Posted by futuretext on Friday May 15, 2015 @02:16PM from the techcrunch.com dept. http://techcrunch.com/2015/05/15/shuffles-new-iphone-app-lets-you-create-disposable-phone-numbers-and-emails-too/?ncid=rss&utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+Techcrunch+%28TechCrunch%29 ( 2 comments | 3 points | on HN )
SPAM is the main reason for disposable emails. Even Microsoft has one built into Outlook.com they call it email Aliases.
However, I doubt it's much in use because Microsoft screwed up the implementation.