Domains with DNS TXT v=spf1 ip4:172.104.63.121 include:spf.protection.outlook.com +a +mx ~all

There is 1 domain that have DNS TXT set to v=spf1 ip4:172.104.63.121 include:spf.protection.outlook.com +a +mx ~all.

Top Domains with TXT set to v=spf1 ip4:172.104.63.121 include:spf.protection.outlook.com +a +mx ~all