MX record lookup

See which servers receive email for a domain, in the order senders try them, and which email provider they belong to.

Good to know

What do the priority numbers mean?: Senders try the lowest number first. Servers with higher numbers are backups, used when the first can't be reached.
Email stopped arriving after a DNS change: Check the MX records still point at your email provider, and that each mail server name resolves. Moving name servers without copying the MX records is a common cause.
What's a null MX?: A single MX record pointing to “.” says on purpose that the domain receives no email, so senders fail straight away instead of retrying.

Checking by hand only tells you about right now. Spot Downtime checks your sites around the clock and alerts you by email, Slack or Discord.