WP-Mailhide

Automatically scans for emails and hides them from spammers using the reCAPTCHA Mailhide API. Nothing in the database is
actually modified, it’s just modified once it’s been taken out of the database.

All of the information you need is here for a thorough guide.Automatically scans for emails and hides them from spammers using the reCAPTCHA Mailhide API. Nothing in the database is
actually modified, it’s just modified once it’s been taken out of the database. See it in action here.

Requirements

You must have two Mailhide API keys (Private and Public). Get them here.
You must also have the mcrypt PHP module, most installations should have it.