The following addresses are only for outbound SMTP customers. They are not required for spam filtering clients.  


Outbound SMTP Group 1 - North America Zone 1


54.68.34.165

54.68.138.64

54.186.57.195

54.149.88.251

54.149.240.58

54.186.10.118

54.149.35.133

54.149.250.69

54.148.153.48



54.148.218.146
54.149.232.81
54.149.244.166
54.149.34.179
54.186.57.195

54.187.213.119
54.187.218.212
54.187.63.214
54.187.71.48



Outbound SMTP Group 2 - European Union


52.28.251.132

52.58.109.202

52.28.147.211

52.58.97.209

52.58.19.153

52.28.246.64

52.28.59.28

52.28.6.212

52.58.96.151 

52.29.156.81