Sender Dependent Outgoing IP Address Problem

So my issue is I am trying to make all my domains send mail from the ip they are setup on. I followed these instructions My problem is when I go into virtualmin and server configuration there is no option for Email Settings. Does anyone know why this is not showing up? or a workaround to get it to work



What Linux distribution/version are you using?


Ubuntu Linux 12.04.1
Virtualmin 3.99

Anyone have any input on this?