Domains with DNS TXT v=spf1 a mx include:spf.protection.outlook.com ip4:217.5.216.42

There is 1 domain that have DNS TXT set to v=spf1 a mx include:spf.protection.outlook.com ip4:217.5.216.42.

Top Domains with TXT set to v=spf1 a mx include:spf.protection.outlook.com ip4:217.5.216.42