I discovered this product and tested its email validation for free and burner emails. It effectively identifies burner emails and validates genuine email addresses to ensure deliverability.

Here are two features I would love to see:

For Tier 3 or above, it would be beneficial to have the ability to validate bulk emails using daily available credits. This would allow for the efficient use of daily credits after the one-time credit has been exhausted.
Enable the option to add domains to a blacklist in cases where the validator fails to detect disposable emails. Sometimes the Reoon email validator might miss disposable emails from certain domains, but providing the flexibility to add or remove domains on demand would be an excellent feature.