TheChecker offers email address verification solutions that improve data quality, deliverability, and email marketing ROI. We've developed an email verification tool, which has one of the best deliverability rates and speed on the market. We have a web app that verifies email lists, a copy-and-paste integration that you can add real-time email verification to any website and an API to run bulk or single email verification straight on the web and mobile applications and to the development of white-label versions.

Here are various features that we provide:

1. Email bounce checker

Identifies and tells you which emails will bounce and thus are not safe to send.

2. Global compatibility

We validate emails of all types and all major providers from anywhere in the world.

3. Catch-all checker

Checks for domains that are catch-all, which return valid for all emails.

4. Email typo correction

Suggests a possible correction for misspelled email addresses (@gmial.com => @gmail.com).

5. Syntax validation

Fully cleans your email list from email addresses with syntax errors.

6. Domain validation

Marks all the emails containing inactive or invalid domains.

7. Mailbox checker

Validates the existence of MX records for every email address.

8. Risk validation

Identifies and marks all the emails which domain accepts any email in their domain.

9. Free de-duplication

TheCheckers email checker tool removes all records containing duplicate emails.

10. Spam trap remover

Our email verifier tool removes all address identified as a spam trap.

11. Disposables checker

Checks against our frequently updated temporary email database.

12. 99%+ TC Guarantee

Our emails marked as "Valid" are covered by our deliverability guarantee.