I don't recognize the address that they claim tried to send me the secure messge, so I've contacted both that address and support[at]zixcorp.com and asked them to stop sending me emails. There's no "unsubscribe" link in their email, which seems to violate CAN-spam?
To my surprise, within a day I got a reply from support[at]zixcorp.com, but they claim that they have no responsibility for the emails, nor do they have any way to stop them since they are "just a mail relay".
What recourse do I have to stop these emails beyond reporting them to Spamcop and emailing their upstream ISP?
Here's the original email I got from them (I received dozens, each similar):
You have a ZixMessage Center message from info[at]xxxxx.com.
To view the secure message, click here.
Do not reply to this notification message as it was auto-generated by the senders security system. To reply to the sender, please go to your secure message by clicking on the link above.
The secure message expires on Apr 21, 2011 [at] 10:30 PM (GMT).
To send and receive secure email messages directly from your Inbox, try ZixMail
Here is their support engineer's reply:
Date: Fri, 1 Apr 2011 16:37:44 -0600 (CST)
From: support <support[at]zixcorp.com>
Subject: Re: Re: Fwd: ZIXbwmo Herndon A. Snider Placement History
We have no control over where emails are sent to. We are an email
encryption provider and simply allow relay access through our servers.
Here's partial mail headers from the original email I received from them:
Received: from smtpout.zixmail.net (smtpout.zixmail.net [220.127.116.11])
by mx.google.com with ESMTPS id v10si4148357anf.161.2011.03.31.15.30.31
Thu, 31 Mar 2011 15:30:31 -0700 (PDT)
Received-SPF: pass (google.com: domain of SecureEmailFrom_info_bbaddbccdadahbgajc[at]zixmessagecenter.com designates 18.104.22.168 as permitted sender) client-ip=22.214.171.124;
Authentication-Results: mx.google.com; spf=pass (google.com: domain of SecureEmailFrom_info_bbaddbccdadahbgajc[at]zixmessagecenter.com designates 126.96.36.199 as permitted sender) smtp.mail=SecureEmailFrom_info_bbaddbccdadahbgajc[at]zixmessagecenter.com
Received: from mailhost (unknown [192.168.128.228])
by smtpout.zixmail.net (Proprietary) with ESMTP id DE78C2C2ADD
for <xxxx[at]gmail.com>; Thu, 31 Mar 2011 16:30:30 -0600 (CST)
Subject: ZIXbwmo Herndon A. Snider Placement History
Date: Thu, 31 Mar 2011 17:30:30 CDT
Edited by rw1000, 01 April 2011 - 06:31 PM.