mxtoolbox.com MX LOOKUP

 MX tool helps verify mail server configurations and identify issues with MX and SPF records for domains.

 

ABOUT MX LOOKUP This test will list MX records for a domain in priority order.

The MX lookup is done directly against the domain's authoritative name server, so changes to MX Records should show up instantly. 

You can click Diagnostics , which will connect to the mail server, verify reverse DNS records, perform a simple Open Relay check and measure response time performance. 

You may also check each MX record (IP Address) against 105 DNS based blacklists . (Commonly called RBLs, DNSBLs)


If you require assistance with your email MX records, submit a help request 🎫