Deliverability Guarantee

We're committed to inbox deliverability

Email deliverability is a critical metric for the success of your email campaigns, and your mailing reputation as a whole. TheChecker uses industry best practices to ensure the most accurate verification results possible. We back up our verification results with an up to 99%+ deliverability rate guarantee with below circumstances:

  • 97%+ Accuracy rates on Microsoft email accounts (Office 365, Hotmail, MSN, Outlook, Live, etc.).
  • 99%+ Accuracy rates on everything else.
  • Yahoo! and AOL email addresses under the deactivation process are not covered by this deliverability guarantee.

Service Commitment and Exclusions

To be considered eligible for the 98%+ deliverability guarantee, your mailing practices must match the following criteria:

- The minimum list size must be 1,000 unique email addresses.
- Email must be sent within a 24 hour period after cleaning.
- Email addresses must be classified as valid.Bounces must be the result of an invalid (non-existing) email address. Unqualified bounces may include (but are not limited to) poor sender reputation, mail server misconfiguration/unavailability, etc.
- Email addresses must have come from your own opt-in sourced (no purchased lists, etc.).

If you believe we have not complied with our guarantee, please contact us via chat within 7-days of the discrepancy. Qualified paying customers can receive a pro-rated refund and free users may receive additional verification credits.

    The global leader in independent customer reviews

    Based on independent customer reviews, our email validation tool is one of the highest-rated in the industry.

    G2 Crowd logo

    4.8/5

    Capterra logo

    4.9/5

    Truspilot logo

    4.7/5

    G2 Crowd logo

    4.8/5

    Capterra logo

    4.9/5

    Truspilot logo

    4.7/5

    Join the market leaders

    Sign up today and get 100 FREE email validations! Try it and the results will speak for themselves.