Aha, that's interesting to know. I found a couple of "envelope from" items in the full header of a message from one of our subscribers - it's kind of buried and easily missed. In the example excerpt below, I have substituted "subscriber" for the subscriber's actual AOL user name:

Received: 	from [209.119.0.174] ([209.119.0.174:58438] helo=LOIRE) by camaro.dc.lsoft.com (envelope-from <[log in to unmask]>) (ecelerity 3.6.0.39694 r(Platform:3.6.0.0)) with ESMTP id BB/23-23571-85229835; Fri, 30 May 2014 20:29:12 -0400

Charles Clausen

On May 31, 2014, at 12:12 AM, Randy Ryan wrote:

> However, I just discovered the "envelope-from" field which contains the senders email address information.  It will make it harder to "average" user to identify a recipients email address for private correspondence, but fair trade IMHO.

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