Domains with DNS TXT v=spf1 include:spf-0034ac01.pphosted.com include:spf.protection.outlook.com include:ca._netblocks.mimecast.com -all

There are 21 domains that have DNS TXT set to v=spf1 include:spf-0034ac01.pphosted.com include:spf.protection.outlook.com include:ca._netblocks.mimecast.com -all. The top 21 records ordered by domain rank are listed below.