Hello Michael,
> -rw------- 1 mds mds 388366336 Sep 20 12:01
> /home/mds/mail/errata/.mutt/.cache
this is the biggest cache I ever saw. Congratulations. :-) If you know
how to handle this, you could recompile mutt yourself (with my patch
included). If you don't know howto do this, I could build you a debian
package. Which version of Debian do you use?
Thomas