Version: 1.4.50 (using 4.2.85 (KDE 4.2.85 (KDE 4.3 Beta1)), Kubuntu packages) Compiler: cc OS: Linux (i686) release 2.6.30-020630rc6-generic There should be a search bar so search feeds in your list, like there is a folder search in kmail now.
This is also requested in https://bugs.kde.org/show_bug.cgi?id=139987
*** This bug has been marked as a duplicate of bug 139987 ***