MX Record Lookup
See which mail servers accept email for a domain — useful for diagnosing routing problems, verifying provider migrations and identifying the email host.
What is an MX record?
An MX (Mail Exchange) record tells the world which servers accept inbound email for your domain. Each record carries a priority — lower numbers are tried first, with the rest acting as fallbacks.
Reading priority
Standard configurations use priorities like 1, 5, 10, 20. The active server has the lowest number; identical priorities are load-balanced. Most managed providers (Google, Microsoft) ship four to five MX hosts.
Why this matters for senders
When you send cold email, recipient MX detection drives ESP-matched routing — sending Google-to-Google and Microsoft-to-Microsoft when possible significantly improves inbox placement.
Ship cold email that actually lands
Icemail bundles dedicated infrastructure, warmup, enrichment, and a unified inbox so your deliverability stays green.
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