This is my personal dumping ground for hints about using linux servers and desktops, in particular, Ubuntu based servers and KDE/Plasma desktops. I always use the latest current release, not the Long Term Support systems, so that I get to explore the latest software releases.
If you have to do a fresh install and want to start from the standard Ubuntu Desktop (using Unity on zesty) as a base and then add KDE Neon (user, dev/stable or dev/unstable) then this hint may help. Assuming you have a /etc/apt/sources.list something like this…
When installing or upgrading to a lightweight zesty (17.04) ubuntu server I use this
/etc/apt/sources.list which I manage via the edpkg alias from the NetServa SH Githb repo.
This is a brief outline of how to take advantage of using only Sieve scripts to manage spam via Spamprobe and Dovecot IMAP services on a Ubuntu Zesty 17.04 server.