MX Record Checker
Check if a domain has MX (Mail Exchange) records configured. Enter a domain name below to verify its mail servers.
Quick Answer
To check MX records for a domain, use an MX record lookup tool that queries DNS servers. Enter the domain name (like gmail.com or outlook.com) and the tool will return all MX records configured for that domain. Each MX record includes a mail server hostname and a priority number — lower priority numbers are tried first. For example, Gmail uses mx.gmail.com with priority 10. MX records are essential for email delivery because they tell sending servers where to route emails. Without MX records, any email sent to that domain will bounce with a delivery failure. You can also check MX records using the command line: run 'nslookup -type=mx domain.com' on Windows or 'dig mx domain.com' on Mac/Linux. Our free MX record checker at emailchecker-b00.pages.dev provides instant results with no signup required.
Source: RFC 1035, DNS Standards
Why MX Records Matter
Email Delivery
MX records tell sending servers where to deliver emails for a domain.
Bounce Prevention
Domains without MX records will reject all incoming emails, causing 100% bounce rates.
Redundancy
Multiple MX records with different priorities provide failover if the primary server goes down.