Copyright Tech To The People 2012. Andreas Henning & Xavier Dutoit. Wikimedia France has sponsored the development.

This module helps avoiding basic typos when filling a civicrm powered form than contains an email field.

For instance if I'm trying to make a donation with the email john.doe@gmail.cm, it will suggest "Did you mean john.doe@gmail.com". If I then clicks on the (correct) suggested email, it automatically updates the email field.

It is a thin wrapper around the mailcheck plugin https://github.com/Kicksend/mailcheck By using a few simple but effective rules, it claims to decrease the number of invalid emails by 50%

http://blog.kicksend.com/how-we-decreased-sign-up-confirmation-email-bounces-by-50/