Free Tool

Email Validation Checker

Validate email addresses for accuracy and deliverability. Check email syntax, domain validity, and mailbox existence to improve your email deliverability.

Why Validate Email Addresses Before Sending?

Bad email addresses can wreck your sender reputation and tank your deliverability rates. Every bounce, every invalid email, and every fake address tells email providers that you're not trustworthy.

This free email validation tool checks syntax, verifies domains, and tests mailbox existence to make sure you're only sending to real, active email addresses. Clean up your lists before they clean out your inbox placement.

Whether you're validating a single email or planning a larger campaign, starting with verified addresses is non-negotiable. High bounce rates trigger spam filters, hurt your domain reputation, and can get you blacklisted fast.

Use this tool to verify emails one by one and keep your sender reputation squeaky clean. When you only email valid addresses, your campaigns perform better and your inbox placement stays strong.