Email security & deliverability · grade A
v=spf1 mx ip4:64.22.178.188 ip4:64.22.178.197 ip4:64.22.178.56 ip4:64.22.176.0/20 ip4:199.188.157.80 ip4:64.22.178.192 ip4:64.18.204.67 ip4:35.80.141.6 ip4:44.229.121.55 ip4:148.59.100.16/28 include:relays._spf.illinois.edu include:learnerhall.com ?all