Domains with DNS TXT v=spf1 a mx include:server292.smtp-spf.sureserver.com include:spf.ess.barracudanetworks.com include:spf.constantcontact.com include:spf.protection.outlook.com -all
There is 1 domain that have DNS TXT set to v=spf1 a mx include:server292.smtp-spf.sureserver.com include:spf.ess.barracudanetworks.com include:spf.constantcontact.com include:spf.protection.outlook.com -all.