- Go to Registration > Registration Form > Fields
- Click on in front of E-mail address
- Under Allowed domains, type in the domain name that may be used (for example organisation.com) and click on
- Repeat this step to allow multiple domains
- Click on the Save button
Practical tip
Another way to prevent non-invitees from registering is to block the registration form. In the following help article, Dana explains how to do this: