Unidentified subject!

This is driving me Nuts. If anyone can tell me why it doesn't work and
what I can do to get it to work, I'd appreciate it.

I've set up an Autoresponder script and if in tthe "TO" match line I
put in the actual name of the list and not the variable it works. BUT
if I put in the variable, it never matches. Here's the log output:

procmail: No match on 
"(^((Original-)?(Resent-)?(To|Cc|Bcc)|(X-Envelope|Apparently(-Resent)?)-To):(.*[^a-zA-Z])?)${LISTNAME}@"


and Here's the recipe

In .procmailrc I have:

LISTNAME=Test_List
ARDOMAIN=TimeVest.com
INCLUDERC=$PMLIB/AutoRespond.rc

And in AutoRespond.rc I have:
(I have tried .*${LISTNAME}@ but it doesn't match either)



:0
* ^TO${LISTNAME}@
* !^X-Loop: ${LISTNAME}(_at_)${ARDOMAIN}
{

     ##### Assignes the File Name and Log Name to the same name as the
     ##### email Prefix address Name.
     FILE=$LISTNAME.txt
     LOG=$LISTNAME.log
     EMAIL=$LISTNAME.$ARDOMAIN

     ##### This puts the message into the mailbox with a note that the Autoreply
     ##### was sent.
     :0 wc
     | (cat - ; echo ''; echo '**** Autoreply Sent $LISTNAME ****'; echo '') >> 
$DEFAULT


     ##### This provides the reply header. With a -k, it sends the body as well.
     ##### without the -k, The message is sent without the body.
     ##### When I use the sendmail without the -t, it doesn't seem to work for
     ##### me. I'm not sure why. My thought was that NOT using the -t will 
     ##### help prevent forgers from requesting the file to be sent to someone 
     ##### else. But, since it only seems to work if I have it, I'm keeping it.
     :0 wc
     | ( formail -rtA 'X-Loop: $EMAIL' \
                   -A 'From: Autoresponder(_at_)$ARDOMAIN' \
                   -i 'Subject: Autorespond File you Requested: $LISTNAME'; \
         cat $FILEDIR/$FILE) 2>&1  \
     | $SENDMAIL -oi -t 

     ##### This keeps a log of the address of the people who made requests.
     ##### A regular cron job could rename this file for you each day.
     :0
     | formail -xFrom: >> $FILEDIR/$LOG
}


The $EMAIL in the formail portion is also a change-- but since I don't
match yet, I don't know for sure if that part will work either.

Thanks for your help.

Bob Brown