Facebook Search Friends
For those who don't know about the reverse e-mail lookup-- I'll bet there will be few- It's an email-based search functionality that lets users to look for other Facebook user based upon their e-mail address.
Using this feature is dead simple. Simply paste the email address of the a stranger or unidentified email sender into the Facebook search box and an auto-suggest fall will let you understand if a matching profile exists in the social media.
Upside.
A significant advantage of this feature is that it offers a method for validating unknown email addresses and assist you to discover an individual in seconds.
Downside.
A significant blunder of this function is that spammers can easily map collected e-mail accounts to user profiles, and utilize the publicly readily available info to craft very persuading individualized emails (for phishing). Facebook Search Friends So, if you are on Facebook, prevent sharing your e-mail address with strangers on online forums and chat spaces.