Hello,
Are you looking to treat email or other traffic from Amazon EC2 instances different than that of other mail servers?
As of May 2011 the current list of IP address ranges for Amazon EC2 instances is :
US East (Northern Virginia):
216.182.224.0/20 (216.182.224.0 - 216.182.239.255)
72.44.32.0/19 (72.44.32.0 - 72.44.63.255)
67.202.0.0/18 (67.202.0.0 - 67.202.63.255)
75.101.128.0/17 (75.101.128.0 - 75.101.255.255)
174.129.0.0/16 (174.129.0.0 - 174.129.255.255)
204.236.192.0/18 (204.236.192.0 - 204.236.255.255)
184.73.0.0/16 (184.73.0.0 – 184.73.255.255)
184.72.128.0/17 (184.72.128.0 - 184.72.255.255)
184.72.64.0/18 (184.72.64.0 - 184.72.127.255)
50.16.0.0/15 (50.16.0.0 - 50.17.255.255)
50.19.0.0/16 (50.19.0.0 - 50.19.255.255)
107.20.0.0/15 (107.20.0.0 - 107.21.255.255)https://forums.aws.amazon.com/
US West (Northern California):
204.236.128.0/18 (216.236.128.0 - 216.236.191.255)
184.72.0.0/18 (184.72.0.0 – 184.72.63.255)
50.18.0.0/16 (50.18.0.0 - 50.18.255.255)https://forums.aws.amazon.com/
EU (Ireland):
79.125.0.0/17 (79.125.0.0 - 79.125.127.255)
46.51.128.0/18 (46.51.128.0 - 46.51.191.255)
46.51.192.0/20 (46.51.192.0 - 46.51.207.255)
46.137.0.0/17 (46.137.0.0 - 46.137.127.255)
46.137.128.0/18 (46.137.128.0 - 46.137.191.255)
Asia Pacific (Singapore)
175.41.128.0/18 (175.41.128.0 - 175.41.191.255)
122.248.192.0/18 (122.248.192.0 - 122.248.255.255)
46.137.224.0/19 (46.137.224.0 - 46.137.255.255)
Asia Pacific (Tokyo)
175.41.192.0/18 (175.41.192.0 - 175.41.255.255)
46.51.224.0/19 (46.51.224.0 - 46.51.255.255)
Are you looking to treat email or other traffic from Amazon EC2 instances different than that of other mail servers?
As of May 2011 the current list of IP address ranges for Amazon EC2 instances is :
US East (Northern Virginia):
216.182.224.0/20 (216.182.224.0 - 216.182.239.255)
72.44.32.0/19 (72.44.32.0 - 72.44.63.255)
67.202.0.0/18 (67.202.0.0 - 67.202.63.255)
75.101.128.0/17 (75.101.128.0 - 75.101.255.255)
174.129.0.0/16 (174.129.0.0 - 174.129.255.255)
204.236.192.0/18 (204.236.192.0 - 204.236.255.255)
184.73.0.0/16 (184.73.0.0 – 184.73.255.255)
184.72.128.0/17 (184.72.128.0 - 184.72.255.255)
184.72.64.0/18 (184.72.64.0 - 184.72.127.255)
50.16.0.0/15 (50.16.0.0 - 50.17.255.255)
50.19.0.0/16 (50.19.0.0 - 50.19.255.255)
107.20.0.0/15 (107.20.0.0 - 107.21.255.255)https://forums.aws.amazon.com/
US West (Northern California):
204.236.128.0/18 (216.236.128.0 - 216.236.191.255)
184.72.0.0/18 (184.72.0.0 – 184.72.63.255)
50.18.0.0/16 (50.18.0.0 - 50.18.255.255)https://forums.aws.amazon.com/
EU (Ireland):
79.125.0.0/17 (79.125.0.0 - 79.125.127.255)
46.51.128.0/18 (46.51.128.0 - 46.51.191.255)
46.51.192.0/20 (46.51.192.0 - 46.51.207.255)
46.137.0.0/17 (46.137.0.0 - 46.137.127.255)
46.137.128.0/18 (46.137.128.0 - 46.137.191.255)
Asia Pacific (Singapore)
175.41.128.0/18 (175.41.128.0 - 175.41.191.255)
122.248.192.0/18 (122.248.192.0 - 122.248.255.255)
46.137.224.0/19 (46.137.224.0 - 46.137.255.255)
Asia Pacific (Tokyo)
175.41.192.0/18 (175.41.192.0 - 175.41.255.255)
46.51.224.0/19 (46.51.224.0 - 46.51.255.255)