Automatically mark emails as read in Evolution 3.2.2?
For evolution 3.4 onwards this is now in dconf in a different location and in ms:
dconf write /org/gnome/evolution/mail/mark-seen-timeout 0
This setting is now in gconf:
gconftool-2 --set /apps/evolution/mail/display/mark_seen_timeout --type int 0
For those, like me, who want to turn this to never mark as read, instead of 0, use a pretty big number, so it practically never gets marked read automatically.
or this command turn this feature off
gconftool-2 --set /apps/evolution/mail/display/mark_seen --type boolean false
With more recent evolution version (e.g. 3.12.11), use gsettings instead
gsettings set org.gnome.evolution.mail mark-seen false