Banned Emails

WHMCS allows you to ban email domains from new client signups. You may want to do this if, for example, you want to prevent client signup using free email accounts.

You can enable this feature at Configuration () > System Settings > Banned Emails.

You can also ban IP addresses and automatically create bans after a set number of login attempts.

Banning Email Domains

The list of banned email domains displays the currently-banned email domains and the number of times a customer has attempted to sign up using them.

Ban an Email Domain

To ban an email domain, enter the email domain you wish to ban. For example, hotmail.com.