"v=spf1 ip4:206.190.89.129/27 ip4:54.86.80.254/32 ip4:13.111.0.56/32" include:mail.zendesk.com include:stspg-customer.com include:_spf.google.com include:et._spf.pardot.com include:sendgrid.net include:spf.mandrillapp.com include:mailsenders.netsuite.com ~all"