Free MX Record Lookup Tool
UDecode MX Record Lookup Tool lets you instantly check the DNS MX records of any domain to determine whether it can receive emails. MX records control mail server routing and are essential for email deliverability, troubleshooting bounces, and verifying domain configuration.
What Are MX Records?
MX (Mail Exchange) records are DNS entries that specify which mail servers handle incoming emails for a domain. For example, Gmail domains point to Google mail servers, while Outlook domains use Microsoft servers. Without properly configured MX records, email delivery will fail.
Why Check MX Records?
- Troubleshoot email delivery issues and bounces
- Validate domain email configuration
- Improve inbox deliverability
- Detect DNS misconfigurations early
How to Use the MX Record Lookup Tool
- Enter a domain or email address (e.g., example.com).
- Click verify to perform an MX record lookup.
- View mail server hostnames and priorities.
- If no MX records are found, the domain cannot receive emails.
Who Should Use MX Record Lookup?
System Administrators
Diagnose DNS and mail routing issues.
Email Marketers
Reduce bounces caused by invalid domains.
Businesses
Ensure reliable email communication.
Developers
Validate domains in signup and onboarding flows.
Related Email Verification Tools
MX lookup checks domain mail servers, but full email validation also requires: syntax validation, disposable email detection, and bulk email verification.