Email security & deliverability · grade A
v=spf1 ip4:140.254.54.0/26 ip4:131.187.90.204 ip4:131.187.90.205 ip4:128.146.86.128/27 ip4:128.146.193.0/27 ip4:128.146.163.0/26 ip4:148.163.151.149 ip4:148.163.155.97 ip4:128.146.138.0/25 ip4:128.146.17.48 ip4:128.146.17.76 ip4:128.146.17.77 ip4:128.146.163.14 ip4:128.146.163.18 ip4:128.146.163.21 include:spf1.osu.edu include:spf.protection.outlook.com ~all