include: exposed

[erich @ olypen . com]

Given my aliases:

# test mailing list 
test:           "|/usr/local/majordomo/wrapper resend -l test test-list"
test-list:      :include:/usr/local/majordomo/lists/test
owner-test:     eric
test-owner:     eric
test-approval:  eric
test-request:   "|/usr/local/majordomo/wrapper majordomo -l test"

Sending to the list makes the first received header look like this:

Received: (from majordomo@localhost)
        by worthless.example.com (8.11.2/8.11.2) id f1RLn1L01691
        for test-list; Tue, 27 Feb 2001 13:49:01 -0800


So my test-list: alias is exposed in the mail. Anyone on the list
who sees this can simply mail test-list@example.com instead of
test@example.com and bypass the wrapper and resend. I imagine spammers
would like this a lot, it bypasses the necessity of being subscribed
to the list, since I only let list members post.

How do I hide this? I've been thinking about this for days and the
solution still eludes me.

Regards,
Eric