Domains with DNS TXT v=spf1 include:_spf.google.com include:spf.zixsmbhosted.com include:spf.protection.outlook.com -all
There are 3 domains that have DNS TXT set to v=spf1 include:_spf.google.com include:spf.zixsmbhosted.com include:spf.protection.outlook.com -all. The top 3 records ordered by domain rank are listed below.