Domains with DNS TXT v=spf1 a include:_spf.google.com include:spf.protection.outlook.com include:spf.mandrillapp.com include:mailer.chargify.com include:_spf.salesforce.com -all
There is 1 domain that have DNS TXT set to v=spf1 a include:_spf.google.com include:spf.protection.outlook.com include:spf.mandrillapp.com include:mailer.chargify.com include:_spf.salesforce.com -all.