User Email Domain

Control what domains a user may use in their email address. This can be used to force users to standardize on a single email service. If email confirmation is required, then this is a good way to restrict the site to users within an organization.

Even if you don't want to restrict the domains, this module can be useful just for checking email syntax.

• Allows for one or many approved domains to check against, or leave the domains field empty.
• Allows you to customize the Description text under the user email field.
• Ensures the email address has correct email syntax.
• If there's a problem with the email address, presents status messages to tell the user what's wrong.
• Problem submissions are reported via Watchdog.

Requires the Email Field and Email Registration modules.

This project has a very simple focus and narrow use cases in contrast with the User Restrictions module, which is a more full-featured security solution.