Protects e-mail addresses from being found by spam spiders (or any other web crawler).
EMAILProtect hides a normal e-mail string (e.g. "firstname.lastname@example.org") by editing the HTML code. This does not effect the outcome as the normal user sees it, but it make's it impossible for web crawlers to locate the e-mail address.
If you look in the source code of you WordPress page, with this plugin activated, you will see
where it's supposed to be an e-mail address.