KMail complains about missing gpgsm

[Tim Ruehsen <tim.ruehsen@gmx.de>]

Hi,

i would like to aktivate S/MIME support in Kmail 1.7.1, KDE 3.3.1, SID. 
It says something like (translated from german): 'Engine /usr/bin/gpgsm not 
configured'. I can't find any official unstable packet witch contains gpgsm.

Can someone help me out?

Tim