drupal-modules/sharedemail

INTRODUCTION

The Shared E-mail module overrides the 'user' module's validation,
that prevents the same e-mail address being used by more than one user.

Works for both registration and account updates.

Displays a warning to the user that they are using a shared email.

Based on Allowing Multiple Accounts from the Same E-Mail Address?

All this module does is remove the unique constraint for the email using a hook.

REQUIREMENTS

None.

INSTALLATION

Install as usual, see Installing contributed modules
for further information.

CONFIGURATION

1. Navigate to settings form through Admin > Configuration > People > Shared E-Mail Settings

   or directly at path /admin/config/people/shared-email