Domains with DNS TXT v=spf1 include:spf.protection.outlook.com ip4:216.201.144.134 include:dallasisp.com include:1callservice.com -all
There is 1 domain that have DNS TXT set to v=spf1 include:spf.protection.outlook.com ip4:216.201.144.134 include:dallasisp.com include:1callservice.com -all.