- HuBuCo is the fastest email verification service; its verification system is capable of processing 3000 emails/minute. HuBuCo follows both American and European data protection principles.HuBuCo's servers are in the European Union. Also, HuBuCo has been growing in popularity with its accuracy as well as freemium offerings for validating email list with lower volume.
- Loyalty discounts for regular customers.
- Option to pay in 22 different currencies.
- 100 email verifications free every day.
- Limited live chat support.
- HuBuCo does not provide integration with ESPs.