Deliverability Guarantee

Email deliverability is a critical metric for the success of your email campaigns and your mailing reputation as a whole. Emails Checker uses industry best practices to ensure the most accurate verification results. We back up our results with a 97.5% (or better) deliverability rate guarantee:

85%+ accuracy rates on AOL, Yahoo, and office 365 email accounts.

98%+ accuracy rates on everything else.

Note: If your list contains old Yahoo and AOL emails, please contact support prior to validating your emails so that our experts can advise you of the best methods to manage your lists. 

Note: Since Emails Checker uses special methods for validating GMX and WEB.de domains, you may get more bounces (maybe more than 10%). 

Service Commitment and Exclusions

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

Batch of at least 1,000 email addresses, verified with Emails Checker and sent within a 48-hour period.

Email addresses must be classified as Deliverable and 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.

Bounces due to spam content, blacklisted IPs, technical issues, invalid mail configuration, throttling, etc. do not qualify for the guarantee.

The list must be an opt-in list that you have collected; it must not have been purchased from a 3rd party.

How the Guarantee works

If you believe we have not lived up to our guarantee, please contact support within 30 days of the discrepancy. Qualified paying customers can receive additional verification credits as below:

If the accuracy rates are below the aforementioned thresholds, we will add 3 times the amount for every 1%. Let's say you have a 96% accuracy rate, which is 1% below the guaranteed threshold of 97%+ accuracy rates on everything else. We will add 3 x 1% (or 3%) of your total validation credits for those emails to your account balance. If your accuracy rate is 2% below the guaranteed threshold, our credits refund will be 6% of your list size. If it's 4% below, the credit refund will be 12%, and so on.

If you experience more than 10% hard bounces after using valid emails from our system, we will refund all credits of that verification batch.