Email security & deliverability · grade A
v=spf1 mx ip4:161.199.112.231 ip4:23.83.208.0/20 ip4:23.83.248.0/22 ip4:64.18.0.0/20 ip4:91.194.0.0/23 ip4:192.250.228.0/22 ip4:198.251.120.0/22 ip6:2620:2d:4000::/48 include:spf.protection.outlook.com include:_spfprod.ngpvan.com include:mailgun.org include:spf.constantcontact.com -all