From: "Eduardo B." <lists@...>
Date: 2013-01-25T04:26:22+09:00
Subject: How do I unsubscribe from the mailing list?

I have sent "unsubscribe" in the body to ruby-talk-ctl@ruby-lang.org
many times but it keeps sending back:

your mail has no effective commands
please read the following help and send requests to
<ruby-talk-ctl@ruby-lang.org>

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