Authenticate by mail
This module enables users to log in to Drupal by sending them a one-time login link to their registered email address. This approach shifts account security responsibility to the user's email provider.
Introduction
This module aims to allow users to log in using a one-time login link sent to their account's registered e-mail address. In doing so, this module effectively moves the burden of Drupal account security to each user's mailbox provider.
Compatibility notice
This module is incompatible with any project that alters, or otherwise depends on, Drupal's password-based authentication, user login form, or password reset form. As an example, the HTTP Basic Authentication module provided by Drupal core is incompatible with this module.
When installed alongside an incompatible project, the behavior of this module is undefined.
Configuration
This module can be configured at Configuration → People → Authenticate by mail.