sendmail

hello,

i want to install procmail as a general purpose mail filter,
and have to ad the following to my sendmail.cf file.
  
           Mprocmail,   P=/u/users/bin/procmail,   F=mSDFMhun,
              S=11, R=21,
                      A=procmail -m $h $f $u

       This enables you to use rules  like  the  following  (most
       likely  in  ruleset 0) to filter mail through the procmail
       mailer (please note the leading tab to continue the  rule,
       and the tab to separate the comments):

              R$*<@some.where>$*
                      $#procmail                   $@/etc/some.rc
              $:$1(_at_)some(_dot_)where(_dot_)procmail$2 R$*<@$*.procmail>$*
                      $1<@$2>$3       Already filtered, map back

but what text must be on some.where and what text must be on
some.where.procmail i want to know it and if you have an example of such a
sendmail.cf file where you have used the -m flag i'd like to have a copy


thanx erik <erikh(_at_)rdc(_dot_)nl>