v=spf1 ip4:52.235.253.128 ip4:20.141.10.196 ip4:20.118.139.208/30 ip4:20.98.194.68/30 ip4:20.83.222.104/30 ip4:20.88.157.184/30 ip4:20.59.80.4/30 ip4:20.51.6.32/30 ip4:20.97.34.220/30 ip4:20.107.239.64/30 ip4:20.105.209.76/30 ip4:20.98.148.156/30 ip4:20.69.8.108/30 ~all