Validating email fields in Gravity Forms with GP Email Validator
By Gravity Wiz
Updated October, 22, 2025
Written by the Editorial team at Gravity Wiz…
The first, and arguably most important, step to making your email marketing strategy thrive is to ensure the emails you’re collecting actually get to the person behind them. Otherwise, why collect emails in the first place?
GP Email Validator is a simple yet mighty spell that ensures emails coming through Gravity Forms are the real deal. It comes with domain validation and two types of email address validation:
- Basic Validation: A convenient plug-and-play solution that blocks emails like `[email protected]` locally.
- Email Verification: A spellbinding analytical tool powered by two mainline verification services for full-fledged email marketing efforts.
Let’s explore!
Validate emails before submission
Email Validator’s Basic Validator keeps email lists squeaky clean using local validation. It stops invalid emails in their tracks the moment Email Validator is activated.
Out of the box, you can also:
- Block disposable email addresses to avoid one-off emails that don’t keep the conversation going.
- Flag Gmail accounts that use the “plus trick” and save the sanitized email to the entry.
- Block free email accounts (like Gmail, Yahoo, etc.) if you’re only looking to connect to professional/educational email addresses.
Block or allow domains
Nip undesired emails in the bud with domain validation. Block known spammer domain addresses or only allow select domains to submit to your forms. Targeting top-level domains such as `.gov` is supported, too.
Take it further with email verification
If you’re looking to up your defenses and your email marketing game, Email Validator offers tight integrations with two email verification services: Kickbox and ZeroBounce. These services check each email to confirm they actually exist and provide additional details, like if the email is from an undesirable domain or if it’s a (spam) trap.
Here are other features these integrations unlock:
Get email insights
Understand why emails were flagged with the Technical Details breakdown. Protect your deliverability score by making more informed decisions on who gets to sit with you at lunch — I mean, stay in your list.
Not familiar with deliverability scores? Our Email Validator Workshop goes over the details with a magical Email Validator demo to boot.
Leverage validation statuses
Validation statuses (i.e. “Risky”, “Undeliverable”) are accessible by Gravity Forms tools, enabling convenient information-based automations. For example:
- Filter entries with risky emails when managing your lists.
- Set up notification conditional logic if anything risky comes through.
Prevent typos
Help users fix typos in real time with Kickbox’s “Did you mean?” feature. This user-friendly spell conjures up a suggestion whenever Kickbox detects a typo or syntax error as the user fills out the form.
Get started with email validator
Email Validator is eager to yell “You shall not pass!” in your forms. Get to know it better over at the GP Email Validator docs or watch it do its magic in the Email Validator Workshop.
If your interest is already more than validated, invite it to your fellowship by getting Gravity Perks now!