Email security & deliverability · grade A
v=spf1 ip4:162.216.20.0/22 ip4:18.217.180.168/32 ip4:35.167.6.212/32 ip4:18.188.14.29/32 mx include:_spf.google.com include:mktomail.com include:sendgrid.net include:stspg-customer.com ~all