Email Deliverability Checker
Free tool for SMEs to validate email addresses before cold outreach. Reduce bounce rates, protect your sender reputation, and improve your email campaign results.
How It Works
We perform multiple validation checks to determine email deliverability:
- Format Check: Validates proper email syntax and formatting
- MX Record Check: Verifies that the domain has valid mail servers
- SMTP Check: Attempts to verify the existence of the mailbox (note: many large providers block this)
* Results show as "Valid," "Invalid," or "Unsure" based on these checks. Many legitimate providers like Gmail block SMTP verification, resulting in "Unsure" status.