Domains with DNS TXT v=spf1 include:spf.protection.outlook.com ip4:67.231.148.133 ip4:67.231.156.138 -all

There are 16 domains that have DNS TXT set to v=spf1 include:spf.protection.outlook.com ip4:67.231.148.133 ip4:67.231.156.138 -all. The top 16 records ordered by domain rank are listed below.