The Mailcheck jQuery plugin is a fantastic bit of code that suggests corrections to domains when your users misspell it in an email address. For example, if someone types in “firstname.lastname@example.org”, Mailcheck will suggest “email@example.com”.
This is perfect for situations where you want to make sure that customers give you accurate email addresses – e-Commerce checkouts for example.
We’ve wrapped up the Mailcheck library into a WordPress plugin below that integrates automatically with all of the major WordPress e-Commerce systems, including WP e-Commerce, WooCommerce, and Jigoshop.
Get it from WordPress.org now.