I've got the task by my job. All official manuals did not give any match information. I just need to quickly install and prepare postfix-server on Debian.
In order to easier understand my question I've drawn a figure: 6 computers in the same local net. And I need send a message from client 115 (which connected to server 114) to client 119 (which is connected to server 117).
It would be great to get step-reference, because I'm not experienced in this part.
Thank you very much!
P.S. Sorry for my English