cubecolour

<p>WordPress 4.5 added the ability to login using the registered user’s email address in place of the username. When this plugin is active, the ability to login using the email address in place of the username is removed, and the label of the input field is changed to reflect this.</p>


No Login by Email Address

Removes the ability to login using the email address instead of the username.

railmedia

<p>Very lightweight plugin which if activated, it locks down the website for public access. Visitors will be prompted with the wp-login.php page where they should log in to access the site. Useful for under construction websites.</p>


No Login by Email Address vs WordPress Require Login