Goodbye for now, kmail

[Werner Joss]

Am Dienstag, 9. Mai 2017, 15:21:52 schrieb René J.V. Bertin:
> It shouldn't be necessary to switch to a Trinity desktop to use its kmail
> version. 

correct.

> Just uninstall the current kmail and all its dependencies, and
> install kmail/trinity with its dependencies and you should be set.

you do not even need to uninstall kmail from kde4 oder kf5.
the trinity version lives in /opt/trinity and uses ~/.tde for its own 
configuration.
there is no interference with ~/.kde4 ~/.local ~/.config or whatever
kde4/kf5 use.
just be sure to have some env variables set, which trinity uses (TDEDIR...)

Werner