Domains with DNS TXT v=spf1 include:spf.protection.outlook.com include:mailgun.org ip4:216.151.217.20 ip4:166.78.71.1 ip4:166.78.71.4 -all
There is 1 domain that have DNS TXT set to v=spf1 include:spf.protection.outlook.com include:mailgun.org ip4:216.151.217.20 ip4:166.78.71.1 ip4:166.78.71.4 -all.