Domains with DNS TXT v=spf1 include:spf.protection.outlook.com include:spf.ess.uk.barracudanetworks.com include:spf.hosts.co.uk include:authsmtp.com -all
There is 1 domain that have DNS TXT set to v=spf1 include:spf.protection.outlook.com include:spf.ess.uk.barracudanetworks.com include:spf.hosts.co.uk include:authsmtp.com -all.