Suppressed email domains validation

Verifies that the supplied email address is not from any of the domains included in the specified application setting. To configure this validation, click Setting Name and then select the name of the API client setting that contains the prohibited domains (Registration Builder lets you select from all the custom API client settings configured in your application):

Note that, when constructing your collection of disallowed email domains, you can use wildcard characters to specify a prohibited domain. For example, the syntax prohibits email addresses from,,, and so on.

This validation can be used with the following field types: