How to Block email IP address on Interchange server

How to Block email IP address.

1. On email client (Outlook, eMclient, Thunderbird) or on Web Mail – View Header- IP

2. Copy header to link below to find originating from IP

3. Check IP location in link below

http://www.ip2location.com/ copy IP found in View Header in Search box and view info

4. Find IP range in link below

5. On Interchange – Config- List – Block – from email address to add ip range on block list