On 30 September 2012 20:50, Dexter Filmore <Dexter.Filmore@gmx.de> wrote:
> I can't find the kmail indexes neither in share/apps/kmail nor in the data dir
> I confed.
> KMail itself works, but where is the index?
> Got a nasty mail stuck in main dir.

I wish that I had your problem!  It pales into insignificance compared with mine. :-(

cd to your mail directory (where all the emails etc. are stored) 
and do
ls -al

et voilą!  There are your indices.
HTH
Lisi