Domains with DNS TXT v=spf1 ip4:24.247.18.51 a include:server271.smtp-spf.sureserver.com include:spf.protection.outlook.com -all
There is 1 domain that have DNS TXT set to v=spf1 ip4:24.247.18.51 a include:server271.smtp-spf.sureserver.com include:spf.protection.outlook.com -all.