DNS-01 / DNS RECORDS
MX Lookup
Find the mail exchanger records and delivery priority for any domain.
About the MX Lookup
MX (Mail Exchanger) records tell the world which servers receive email for your domain, and in what priority order. If your MX records are missing or misconfigured, inbound mail simply won't arrive. This tool lists every MX record for a domain, sorted by delivery priority.
What this tool checks
It resolves the MX records for your domain and lists each mail server with its priority value. Lower numbers are tried first, with higher numbers acting as backups.
How to read the result
A domain can have one or several MX records. Multiple records with different priorities provide redundancy. If no MX records appear, the domain can't receive email until they're configured with your mail host.
Frequently asked questions
What does MX priority mean?
Priority sets the order servers are tried. The lowest number is the primary. If it's unreachable, sending servers fall back to the next-lowest, providing redundancy.
Can I have multiple MX records?
Yes, and it's good practice. Multiple MX records at different priorities give you failover if your primary mail server goes down. Records at equal priority distribute load.
Why is my email not being received?
The most common causes are missing MX records, MX records pointing to the wrong host, or a firewall blocking port 25 on the mail server. Confirm your MX records here, then verify the target server accepts SMTP connections.