how do I quit this list?

To: ircd-users@xxxxxxx
Subject: how do I quit this list?
From: Zeitgeist <zeitgeist@xxxxxxxxxxx>
Date: Sat, 19 Apr 2003 21:46:51 -0500
Delivered-to: ircd-users-out@irc.org
Delivered-to: ircd-users@irc.org
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How do I unsubscribe from this list?

Thanks