~/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
10 cnn-com.mail.protection.outlook.com 52.101.8.42, 52.101.9.0, 52.101.40.4, 52.101.8.46
// Save cnn.com → we'll run this daily and alert on changes. /signup →