Email security & deliverability · grade A
v=spf1 include:spf.protection.outlook.com include:mktomail.com include:zohomail360.com include:mail.zendesk.com include:amazonses.com ip4:167.89.0.0/17 ip4:168.245.0.0/17 ip4:156.154.17.104 ip4:156.154.134.1 -all