/usr/share/kde4/services/ is in kmail 4:4.8.2-0ubuntu2.
This file is owned by root:root, with mode 0o755.
..
/usr/share/kde4/services/ServiceMenus/
/usr/share/kde4/services/ServiceMenus/kmail_addattachmentservicemenu.desktop
/usr/share/kde4/services/kcm_kpimidentities.desktop
/usr/share/kde4/services/kcmkmailsummary.desktop
/usr/share/kde4/services/kmail_config_accounts.desktop
/usr/share/kde4/services/kmail_config_appearance.desktop
/usr/share/kde4/services/kmail_config_composer.desktop
/usr/share/kde4/services/kmail_config_identity.desktop
/usr/share/kde4/services/kmail_config_misc.desktop
/usr/share/kde4/services/kmail_config_security.desktop
/usr/share/kde4/services/kontact/
/usr/share/kde4/services/kontact/kmailplugin.desktop