Domains with DNS TXT v=spf1 include:spf.protection.outlook.com include:spf.hornetsecurity.com include:ispgateway.de ~all

There are 18 domains that have DNS TXT set to v=spf1 include:spf.protection.outlook.com include:spf.hornetsecurity.com include:ispgateway.de ~all. The top 18 records ordered by domain rank are listed below.