Domains with DNS TXT v=spf1 a include:spf.protection.outlook.com include:spf.ess.de.barracudanetworks.com -all
There are 24 domains that have DNS TXT set to v=spf1 a include:spf.protection.outlook.com include:spf.ess.de.barracudanetworks.com -all. The top 24 records ordered by domain rank are listed below.