incoming to rule no firing...

In my INCOMING filter I have the following text:

macro SPAMDEL	deliver=~/.maildir/.spam/
macro DELOK deliver=~/.maildir/

(Yes I could choose better names.)

A little further on in the INCOMING filter file I have

# If the send to address is one of my mailing lists, let it through.
#
to-file ~/.tmda/lists/mailinglists DELOK

In my /etc/tmdarc file I have:

import os

LOGFILE_DEBUG = "/var/log/tmdadebug"
LOGFILE_INCOMING = "/var/log/tmdaincom"
LOGFILE_OUTGOING = "/var/log/tmdaoutgo"
CONFIRM_ACCEPT_NOTIFY = 0
ACTION_INCOMING = "hold"

The contents of my mailinglists file has:
[email protected]
[email protected]

I get an emai with the following headers:

Received: from [66.163.187.120] by n8.bullet.sc5.yahoo.com with NNFMP; 
01 Oct 2006 22:25:31 -0000
Received: from [66.218.69.2] by t1.bullet.sc5.yahoo.com with NNFMP; 01 
Oct 2006 22:25:31 -0000
Received: from [66.218.66.90] by t2.bullet.scd.yahoo.com with NNFMP; 01 
Oct 2006 22:25:31 -0000
To: [email protected]
Message-ID: <[email protected]>
User-Agent: eGroups-EW/0.82
X-Mailer: Yahoo Groups Message Poster

Yet the above mail ends up in my pending queue.

At the top of the list of headers from tmda-cgi I also see:
Return-Path: 
<sentto-1316658-2321-1159741711-tony=ercolano.com@returns.groups.yahoo.com>
Delivered-To: 

[email protected]

What obvious thing am I missing?

Thank you