What this tool checks
- MX hosts
- Priorities
- Missing MX warnings
Email Deliverability Tools
MX Checker
Find mail exchanger records and priorities for a domain.
Run the check
Enter a public target. Checks are a point-in-time sample; private and internal addresses are blocked.
Why it matters
MX records tell other mail servers where to deliver email.
Plain-English examples
- Check mail routing before migrating email
Recommended fixes
- Keep MX priorities deliberate
- Remove stale MX hosts after migrations
Understanding the result
Use findings as a starting point, confirm the intended configuration with your provider, and retest after a change. A successful check does not guarantee security, delivery, uptime or search rankings. Results depend on public DNS and what the server exposes at the time of the check.
Related tools
Run these checks next for a fuller picture.
SPF Checker
Find and analyse SPF records for sender authorisation.
Run checkDKIM Checker
Check a DKIM selector under selector._domainkey.domain.
Run checkDMARC Checker
Check DMARC policy, reporting tags and enforcement readiness for your domain email.
Run checkMTA-STS Checker
Check MTA-STS DNS and policy file availability.
Run checkNeed help fixing the result?
