Email MX Checker

Check whether a domain can receive email by looking up its MX records — the mail servers it points to.

How to use

  1. Type an email address or a domain name. If you type an email, the tool extracts the domain part.
  2. Click "Check MX" and the server queries the DNS for MX records.
  3. Read the result: whether MX records exist and, if so, which mail servers handle email for that domain, sorted by priority.

About this tool

MX records are the DNS entries that tell the internet which servers handle email for a domain. When you send an email to [email protected], the sending server looks up the MX records for example.com and delivers the message to the server with the lowest priority number. If there are no MX records, the domain cannot receive email.

This tool runs checkdnsrr and getmxrr from the server side. It accepts either an email address (it extracts the domain) or a plain domain. The result shows whether MX records exist and lists the mail servers in priority order.

The check tells you whether a domain is configured to receive email, not whether a specific mailbox exists. It is useful for verifying DNS configuration, debugging delivery issues and checking whether a domain you are about to email actually has mail infrastructure.

Frequently asked questions

Does this tell me if an email address exists?

No. It tells you if the domain can receive email at all. Whether a specific mailbox exists requires an SMTP check, which this tool does not do.

What does priority mean?

The lower the number, the higher the priority. The sending server tries the lowest-priority MX first and falls back to higher numbers if it fails.

Why does a domain have multiple MX records?

For redundancy. If the primary mail server is down, the sending server tries the next one.

Can a domain receive email without MX records?

Technically, if it has an A record, some servers will try to deliver to the IP directly. But in practice, no MX records means no reliable email.

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Vai.la is not responsible for how the tools are used or for decisions made based on their results.