~/tools / mx-lookup

MX Lookup

Check MX records and detect mail provider. Lists records by priority with their resolved IPs.

>
[ OK ] MX configured. Detected provider: Microsoft 365.
── output ─────
Provider: Microsoft 365
PriorityMail serverIPs
5 outlook-com.olc.protection.outlook.com 52.101.68.17, 52.101.73.9, 52.101.73.23, 52.101.9.1
// Save outlook.com → we'll run this daily and alert on changes. /signup →