This task can be performed using Verifiable
Validate and score emails to reduce bounces and improve deliverability.
Best product for this task

Verifiable
marketing
Verifies email addresses for accuracy and deliverability by checking format, domain records, and server response to improve email delivery rates and decrease bounces. It uses a pay-as-you-go model with no subscriptions.

What to expect from an ideal product
- Verifiable checks email formatting errors and typos that could cause your campaigns to fail before you hit send
- The tool validates domain records to make sure the email addresses you're targeting actually exist and can receive messages
- It tests server responses from recipient email providers to catch addresses that would bounce back and hurt your sender reputation
- You can clean your entire email list upfront to remove bad addresses that waste your campaign budget and skew your metrics
- The pay-per-use pricing lets you verify addresses only when you need to, without paying monthly fees for lists you're not actively using