Q: What are the IP address blocks of the LaneChange.Net Email Defense Servers?
A: The IP address block of the Email Defense service you need to allow to connect to your servers are:
188.8.131.52/28 (184.108.40.206 to 220.127.116.11) subnet 255.255.255.240
18.104.22.168/26 (22.214.171.124 to 126.96.36.199) subnet 255.255.255.192
188.8.131.52/23 (184.108.40.206 to 220.127.116.11) subnet 255.255.254.0
All other inbound connections to your email server should be blocked to prevent by-passing of our Email Defense filtering service.