Rewrite subject header for mailing list

Hello!

I'm using Kmail 1.11.4 (KDE 4.2.4, Slackware 13) and I'm trying to 
remove <[kdepim-users]> from the subject header for mails on this 
list. Unfortunately <\[kdepim\-users\] > doesn't work. If I remove the 
first square bracket in the expression everything but the first square 
bracket disappears from the header, i.e. <kdepim\-users\]> is working 
but not <\[kdepim\-users\}]>.

What am I doing wrong?


Jakob