Domains & DNS
MX Record Checker
Look up the MX (mail exchanger) records for any domain to see which mail servers handle its email — essential for diagnosing email delivery and setting up hosting.
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The MX Record Checker looks up a domain's mail exchanger records to reveal exactly which mail servers are responsible for receiving its email, along with their priority values. Every domain that receives email relies on correctly configured MX records, and even a small mistake can silently bounce or lose incoming messages. This tool gives you a clear, ordered view of a domain's mail routing so you can verify it points to the right provider, whether that is Google Workspace, Microsoft 365, or your own server.
Built for email administrators, agencies, and business owners in Phnom Penh, Siem Reap and across Cambodia, this free tool by Hosting Cambodia is ideal after setting up a new mailbox, migrating email providers, or diagnosing why messages are not arriving. Enter a domain and instantly see its MX hosts, their priorities, and confirm your mail is routed exactly where it should be.
Frequently asked questions
What does the MX priority number mean?
Priority sets the order mail servers are tried, with the lowest number tried first. Additional records with higher numbers act as backups if the primary server is unavailable.
Why does my domain have no MX records?
A missing MX record usually means email has not been set up for the domain, or the records have not propagated yet. Without valid MX records the domain cannot reliably receive email.
How do I know which email provider a domain uses?
The MX hostnames often reveal the provider, for example values ending in google.com indicate Google Workspace and outlook.com indicate Microsoft 365.
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