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MX Health Monitoring

Verify your mail server is configured and reachable.

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MX health monitoring checks that your domain has valid MX records and that the primary mail server resolves successfully. Broken MX configuration means lost email — often silent for days.

⚙️How it works

Uptrue resolves MX records for your domain, sorts by priority, and attempts to resolve the highest-priority mail server's A record. If MX records are missing or the primary server doesn't resolve, an alert fires.

✓What Uptrue checks

  • MX records present
  • MX record priority ordering
  • Primary mail server A record resolves
  • All MX servers reachable

⚠Alert conditions

  • No MX records found for domain
  • Primary MX host does not resolve
Why this matters

Email failures are often the last thing discovered during domain migrations, registrar transfers, or DNS changes. By then, days of mail may have been lost.

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Free plan · 3 monitors · No credit card required
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?Frequently asked questions

Does it test SMTP connectivity?
Currently checks DNS resolution of MX hosts. SMTP banner checks are on the roadmap.
What if I use Google Workspace or Microsoft 365?
Their MX hosts are well-known and reliably resolve. We'll alert you if the configuration drifts.
Related Monitor Types
✉️SPF / DMARC Monitoring📡DNS Record Monitoring🚫Blacklist / DNSBL Monitoring
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Ready to set up MX Health Monitoring?

Join teams who monitor their infrastructure with Uptrue. Free plan, no credit card required. Want to spot-check first? Run our free SPF & DMARC checker.

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