How do you find out if an email has a facebook profile?

[Jacob]

[AKFortyHolic]

Enter the email in the people search bar and only one result should pop up. If nothing pops up, either they have blocked you or they don't have one.

[abraXus]

you just search for it, but this is misleading, as people can easily just make their email address unsearchable as outlined here

http://abrax.us/Facebook/NotSearchable.php

some people (like people looking for a job, or trying to get into college) dont want to be searchable