> "You are not subscribed to this list, so you cannot unsubscribe."

obviously, you would not want someone else to unsubscribe you (just to
aggravate you), right?

to prevent that you *must* be able to send an email FROM the address
that the list is mailed to..

so, you need to go to all of your mail accounts and send an
unsubscribe from _each_ one...until you stumble on the correct account
and get a unsubscribe confirmation (instead of the "you are not
subscribed" you get now)..

[bummer, i know...but, next time remember the account used]

--
decorated_warrior