Email validation

Collect accurate data with real-time email validation. Disallow free email accounts (e.g. Gmail) or only allow valid email addresses, based on an external database check.

How to validate business emails

First, add an Email field to your form and click the settings icon to open the right-hand panel settings. Head to the Enrich (Conversion kit) section.
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Toggle Disallow free email accounts to block free email accounts, like,, and, from proceeding in your form.
Toggle Validate email address to only allow valid emails to be submitted. Fillout calls a third party service to check if the email is valid. This helps prevent typos, like if someone types instead of
Validation rules are enforced when respondent tries to proceed to the next page.
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