How to Block or Allow Email Domains with Domain Validation in Gravity Forms
Learn how to quickly block known spammer domains or restrict submissions to emails from specific domains. Bonus: top-level domain support.
Domain validation lets you control which email domains can be submitted to your forms. Block unwanted domains with a domain blocklist, or only allow specific ones through by conjuring an allowlist.
With GP Email Validator, you can create lists that target exact domains (like gravitywiz.com) and top-level domains (like .org) to cast your net as wide—or narrow—as you like.
Let’s take a look at how easy it is to set it up. 
If want to block specific emails or IP addresses, GP Blocklist is likely the spell for you. Check it out!
This article requires the Gravity Forms Email Validator perk.
Buy Gravity Perks to get this perk plus 48 other premium Gravity Forms plugins!
Enable GP Email Validator
GP Email Validator is available through Gravity Perks and you can download it directly from your Spellbook. 
Set Up Domain Validation
Head over to your Gravity Forms settings and navigate to Email Validator.
Curious about the specific Email Validator settings? You can read about it in more detail over at How to Enable Real-Time Email Validation in Gravity Forms.
Under the Domain Validator settings, choose the Domain Validator Mode. None indicates that Domain Validator is inactive.
Option 1: Create Allowlist
Select Allow to create an allowlist of domains and/or top-level domains. Only emails from those domains can be submitted.
Use Case Examples:
Restrict access to country-specific top level email domains for a training portal funded by a local government program. If international trainers or partner organizations need to register too, you can add their domains individually.
Only allow students from accredited universities and community colleges to get a student discount.
Option 2: Create Blocklist
Select Block to create a blocklist of domains and/or top-level domains. All other emails (that are also validated by Email Validator) can be submitted, except these ones.
Use Case Example:
Block specific domains and top-level domains that have given you trouble before.
Pro-tip: Temporary email domains are automatically blocked by Email Validator’s default rules.
You’re all set!
After saving your settings, that is. 
Once GP Email Validator is active, the domain validation you set up is automatically applied to all Email fields across your forms. If you want to disable GP Email Validator on certain email fields:
- Navigate to the field.
- Open the Perks tab in their field settings.
- Unselect the Enable Email Validation checkbox.
Have questions? Hit us up in the comments. 
