Domains with DNS TXT v=spf1 +mx +a +ip4:159.69.206.237 +ip4:159.89.4.234 +ip4:185.112.158.241 +ip4:185.112.156.26 +ip4:185.112.156.21 +include:spf.protection.outlook.com +include:senders.mailmasterplus.net -all

There is 1 domain that have DNS TXT set to v=spf1 +mx +a +ip4:159.69.206.237 +ip4:159.89.4.234 +ip4:185.112.158.241 +ip4:185.112.156.26 +ip4:185.112.156.21 +include:spf.protection.outlook.com +include:senders.mailmasterplus.net -all.

Top Domains with TXT set to v=spf1 +mx +a +ip4:159.69.206.237 +ip4:159.89.4.234 +ip4:185.112.158.241 +ip4:185.112.156.26 +ip4:185.112.156.21 +include:spf.protection.outlook.com +include:senders.mailmasterplus.net -all