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Also you may have to whitelist the following IP addresses:
52.238.248.88,52.238.248.132,52.238.248.144,52.238.248.183,52.238.248.231,52.238.249.10,52.238.249.57,52.238.249.91,52.238.249.107,52.238.249.112,52.238.249.117,52.238.249.124,52.238.249.151,52.238.249.153,52.238.249.173,52.238.249.178,52.238.249.185,52.238.249.205,52.238.249.209,52.238.249.214,52.238.249.247,52.238.249.253,52.238.250.23,52.238.250.37,52.238.250.43,52.238.250.46,52.238.250.61,52.238.250.65,52.238.250.93,52.238.250.94,20.40.202.22
52.191.87.106,52.191.87.107,52.191.87.108,52.191.87.109,52.191.87.110,52.191.87.111,52.191.87.112,52.191.87.113,52.191.87.114,52.191.87.115,52.191.87.116,52.191.87.118,52.190.24.128,52.190.24.176,52.190.26.51,52.190.26.67,52.190.26.86,52.190.26.222,52.190.27.48,52.190.27.146,52.190.28.79,52.190.28.223,52.190.28.240,52.190.30.0,52.191.87.119,52.191.87.120,52.191.87.121,52.152.204.184,52.152.205.87,52.152.206.216,20.49.104.0
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