Domains with DNS TXT v=spf1 include:spf.protection.outlook.com +ip4:199.16.131.160 +a +mx -all

There is 1 domain that have DNS TXT set to v=spf1 include:spf.protection.outlook.com +ip4:199.16.131.160 +a +mx -all.

Top Domains with TXT set to v=spf1 include:spf.protection.outlook.com +ip4:199.16.131.160 +a +mx -all