Domains with DNS TXT v=spf1 include:spf.protection.outlook.com include:_netblocks.mimecast.com include:servers.mcsv.net ~all

There are 38 domains that have DNS TXT set to v=spf1 include:spf.protection.outlook.com include:_netblocks.mimecast.com include:servers.mcsv.net ~all. The top 38 records ordered by domain rank are listed below.