Domains with DNS TXT v=spf1 +a +mx +ip4:54.253.193.6 +ip4:172.26.0.255 +ip4:54.153.168.191 +ip4:54.153.168.191 +include:spf.protection.outlook.com -all

There is 1 domain that have DNS TXT set to v=spf1 +a +mx +ip4:54.253.193.6 +ip4:172.26.0.255 +ip4:54.153.168.191 +ip4:54.153.168.191 +include:spf.protection.outlook.com -all.

Top Domains with TXT set to v=spf1 +a +mx +ip4:54.253.193.6 +ip4:172.26.0.255 +ip4:54.153.168.191 +ip4:54.153.168.191 +include:spf.protection.outlook.com -all