Seems that EarthLink does have an acceptable Use policy.
This knowledge might come in handy.
>EarthLink Net Abuse Report:
>
>The following EarthLink subscribers have been reported for Network or
>USENET abuse. Appropriate action has been taken against these
>entities in accordance with the Subscriber Agreement and AUP
>(Acceptable Use Policy):
>http://www.earthlink.net/company/aupolicy.html.
>
>To report Net Abuse, email sp...@earthlink.net or ab...@earthlink.net.
>
>For diagnostic and tracking purposes, please include a copy of the
>suspected Spam or abuse, along with the full headers of the message.
>
>The subscribers listed below have been reported to EarthLink and no
>further reports are necessary regarding them, at this time. Thanks
>for your patience, as we continue to make every effort to rid the
>world of Spam.
>
>Users:
>
>1. peggysue7
>2. peggysue2
>3. gemery
>4. rasputin34
>rrainier
>
--
Russell McOrmond, Consultant: <http://www.flora.org/russell/work/>
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