Domains with DNS TXT v=spf1 +a +mx +ip4:91.197.228.50 +include:spf.protection.outlook.com +include:servers.mcsv.net ~all

There are 54 domains that have DNS TXT set to v=spf1 +a +mx +ip4:91.197.228.50 +include:spf.protection.outlook.com +include:servers.mcsv.net ~all. The top 50 records ordered by domain rank are listed below.