InfraNestInfraNest
Free tool

MX Lookup

See which mail servers a domain uses to receive email, and their priorities.

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Go beyond this tool. Manage DNS across every provider — in one dashboard.

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MX (Mail Exchange) records tell other mail servers where to deliver email for your domain. Lower priority numbers are tried first. Missing or wrong MX records mean inbound email simply fails.

Use this to confirm your mail provider is set up correctly, or to see who hosts a domain’s email.

InfraNest

DNS and email records, together

InfraNest manages your MX and all other DNS records with live sync and ready-made templates for Google Workspace, Microsoft 365 and Zoho.

  • Mail presets for Google, Microsoft & Zoho
  • Live push sync to your provider
  • Per-record sync status
  • Drift detection

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