~/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 microsoft-com.mail.protection.outlook.com 52.101.11.10, 52.101.50.1, 52.101.194.3, 52.101.194.4
// Save microsoft.com → we'll run this daily and alert on changes. /signup →