Hi, I have a running Fedora 24 emails server using postfix 3.1.3, with courier.
I wonder how to build a pair of MTAs to secure emails at all time, having 2 servers receiving the emails, and users could connect to either server to get emails, maybe on a load balanced way.
Problems are with synchronization when receiving emails from outside, or emails read, emails moved,....
Does someone have a good guide, howto, doc to achieve this? Thanks for help. Patrick
