Look a little closer.  The raw message has the full headers of the 
message, which contains the senders email address.

On Tue, 29 Mar 2005, Noshdoo Tsoh wrote:

> It looks like the full (raw) message links on the right side do not include
> the sender's email address, unless it was previously inserted into the email
> text by someone else's email client.
>
> -----Original Message-----
> From: az-geocaching-bounces@listserv.azgeocaching.com
> [mailto:az-geocaching-bounces@listserv.azgeocaching.com]On Behalf Of Ken
> Bowley
> Sent: Tuesday, March 29, 2005 10:02 AM
> To: listserv@azgeocaching.com
> Subject: Re: [Az-Geocaching] spam
>
>
> The full message is still available, unless the spam harvesters ignore the
> link for the raw message over on the right side of the page.
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