Why does my domain have no MX records?

If a domain has no MX records, it cannot receive email at all — messages sent to addresses on that domain will bounce. This is common for domains used only for websites, with email handled separately on a subdomain or a different provider.

Can a domain have multiple MX records?

Yes, and it's common practice. Multiple MX records with different priorities let mail providers fail over to a backup server if the primary one is unreachable, improving email delivery reliability.

Hostperl DNS Tools

MX Lookup

Check a domain's MX records to see which mail servers handle its email and in what priority order.

MX records determine where a domain's email gets delivered. Checking them is the first step when troubleshooting why email isn't arriving, or when migrating to a new email provider.

Frequently asked questions

An MX (Mail Exchange) record tells the internet which mail servers are responsible for receiving email on behalf of a domain. Each MX record has a priority value — lower numbers are tried first, so a domain can list backup mail servers with higher priority numbers.