help with maximum message size rules

Hello all,

I am new to this list but I have put quite a bit of time
looking for answers in the many FAQs and online materials.
I *almost* managed to get a recipie to do what I wanted, but
I'm stumped on the last part.

What I am trying to do is configure procmail to reject 
incoming messages based on the size of the message (done).  If
the message is above a certain size, then I want to bounce
the message back with a generic error (done) and INCLUDE THE ORIGINAL
HEADERS in the response (not done).  It's that "include the 
headers" part that I'm having trouble with!

What I want to know is how I can store a good copy of the
message headers in a variable or something which can then
be used in my auto-reply?  I've tried storing the headers
in a variable but the carriage returns are lost (and there's
a finite limit to the length of headers that can be stored
in a variable).

Here's my recipie so far.  If there's a better way to do
what I want please let me know!  I'm still learning...


-- cut here --

SHELL=/bin/sh
PATH=/usr/local/bin:/bin:/usr/bin
LOGFILE=/tmp/log.amsinternal
VERBOSE=yes
MAXMSGSIZE=10000
MAX_INBOX_SIZE=200000

#
# Bounce messages which exceed the MAXMSGSIZE variable
#
:0
* > ${MAXMSGSIZE}
{
    #
    # Get the subject line of the offending piece of mail
    #
    :0 h
    SUBJECT=|formail -x "Subject:"

    #
    # Generate the auto-reply
    #
    :0 h
    * !^FROM_DAEMON
    * !^X-Loop: X-BOUNCE-FILE-SIZE
    | (formail -rt \
       -I"Subject: Returned Mail: ${SUBJECT}" \
       -I"From: MAILER-DAEMON(_at_)${HOST}" \
       -A"X-Max-Message-Size: ${MAXMSGSIZE} bytes" \
       -A"X-Bounced-Reason: Maximum Message Size Exceeded" \
       -A"X-Loop: X-BOUNCE-FILE-SIZE" ; \
       cat /usr/local/etc/autoreplies/bounce-file-size ) | $SENDMAIL -t

    #
    # Trash the message
    #
    :0 h
    /dev/null
}