Data Quality

Stop Bad Emails at the Door

Someone types 'john@gmial.com' into your form. The Email Validator catches the typo, checks the domain, and flags the record before it becomes a bounced campaign three months later.

Set Up Email Validation

Sound familiar?

Email Marketer

Your bounce rate is climbing because form submissions include typos, fake addresses, and disposable email domains. Every bad email costs deliverability score.

Sales Manager

Reps spend time following up on leads with invalid emails. Half the discovery calls never happen because the email bounced.

Nonprofit Coordinator

Donation receipts bounce because donors mistyped their email. You can't send tax acknowledgments to addresses that don't exist.

What it does

1

Syntax validation

Catches formatting errors: missing @, double dots, spaces, and other structural problems. Fast and free.

2

Domain check

Verifies the email domain exists and has valid MX records. Catches typos like gmial.com and outloo.com.

3

Disposable detection

Identifies temporary email services (Guerrilla Mail, Mailinator, etc.) used to bypass signup requirements.

4

Deliverability check

Pings the mail server to verify the mailbox exists without sending an email. Reduces bounces before you send.

How to set it up

1

Select the email field

Choose which email field on your form to validate.

2

Choose validation level

Pick from syntax-only (fast), domain check (recommended), or full deliverability (thorough). Each level includes the ones above it.

3

Set up flagging

Choose how invalid emails are handled: flag with a checkbox, set a status field, add a note, or block the submission.

4

Enable validation

Turn on the validator. It checks every email submitted through your forms and takes action based on your rules.

Going deeper

Validation levels

  • Syntax check (format, characters, structure)
  • Domain verification (DNS and MX records)
  • Disposable email detection
  • Mailbox existence verification

Actions on failure

  • Flag with checkbox or single select
  • Add validation result to a text field
  • Suggest corrections for common typos
  • Block form submission if invalid

Configuration

  • Allowlist specific domains
  • Block specific domains (competitors, disposable)
  • Accept role emails (info@, support@) or flag them
  • Custom regex for internal email formats

Frequently asked questions

Does it actually send an email to verify?

No. It checks the mail server without delivering anything. The recipient never knows their address was validated.

Can it catch typos in common domains?

Yes. It suggests corrections for known typo domains: gmial.com to gmail.com, yaho.com to yahoo.com, outloo.com to outlook.com.

What about catch-all domains?

Some domains accept all addresses (catch-all). The validator flags these so you know the domain is valid but the specific mailbox can't be confirmed.

Does validation slow down form submission?

Syntax and domain checks take milliseconds. Full deliverability checks take 1-2 seconds. The submitter doesn't wait because validation happens after submission.

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Related reading

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Try Email Validator free

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