v=spf1 ip4:74.53.28.178 ip4:216.172.188.70 ip4:216.172.188.71 ip4:216.172.188.75 ip4:216.172.188.85 ip4:162.144.212.13 ip4:108.167.151.19 ip4:108.167.151.29 include:spf.titan.email include:_spf.google.com include:mail.zendesk.com include:_spf.kmitd.com ~all