If KMail data cannot be found by the Evolution importer.
Andre Klapper
ak-47@gmx.net
Lukács Bence
lukacs.bence1 at gmail dot com 2011.
Kelemen Gábor
kelemeng at gnome dot hu 2011, 2012, 2013, 2015, 2017, 2018.
Nagy Zoltán
dzodzie at gmail dot com 2011.
Úr Balázs
ur.balazs at fsf dot hu 2014, 2019.

# KMail

Note that Evolution only recognized KDE 4 directories:

$HOME/.kde4/share/apps/kmail/mail for mail

$HOME/.kde4/share/apps/kabc for contacts