More info:
There are, in fact, 2 “To: ” fields in the message header.
Return-path: <j[my_email]@[my_email].com>
Received: from jkaluski by ssd13.[host].com with local (Exim 4.82)
(envelope-from <j[my_email]@[my_email].com>)
id 1XROD5-0015X6-Th; Tue, 09 Sep 2014 12:24:03 -0400
To: j[my_email]@[my_email].com
Subject: asdf
X-PHP-Script: [site]/site/index.php for [xx.xx.xx.xx]
Date: Tue, 9 Sep 2014 16:24:03 +0000
To: j[my_email]@[my_email].com
From: j[my_email]@[my_email].com
Subject: asdf