Email security & deliverability · grade A
v=spf1 include:_spf.google.com ip4:12.0.206.52/29 ip4:12.218.81.99/32 ip4:199.193.200.96 ip4:199.193.204.96 ip4:35.167.152.199/32 include:sendgrid.net include:mail.zendesk.com include:_spf.psm.knowbe4.com ~all