I would like to forward the emails received by root to an external email on an Ubuntu node. I have seen this post, but it does not explain much about the procedure to follow. There are some other posts available online, but they are often incomplete or unclear.
Does anyone have a complete procedure to share? Should a mailserver be installed on my node? If yes, which one? What are the configurations steps on the node? I am working strictly with command line (the node is a server).