Email security & deliverability · grade A
v=spf1 include:spf.protection.outlook.com ip4:216.168.254.20/31 a:houston.thawte.com a:mail.digicert.com a:des.digicert.com include:_spf.salesforce.com ip4:216.168.247.10 ip4:52.37.154.10/32 ip4:64.19.218.132 ip4:64.19.218.10 -all