1. Status codes. After verification, it provides a large set of status codes (e.g. server_dead, smpt_error, domain_error, etc) that make the verification process very clear and self-explanatory. 2. Pricing. Email List Verify costs twice less than analog web apps. 3. Speed. It performs verification much faster than the majority of verification apps. 4. Tech support. When just signed up, I had an issue that was resolved by their support team in 2 minutes. 5. API support and easy-to-read documentation.

I found the customer service excellent. I worked with Tomas and he was responsive and proactive in helping me. The product itself is pretty straightforward.

Hands down the best prices, 99% accuracy and the customer service is amazing. We send billions of emails every month and we rely HEAVILY on accurate email addresses. Even a smalll mistake can cost us millions in revenue. We ONLY trust Email List Verify with the task of unsuring all of our emails are valid.