get them to send you an email and look in the header. Any decent mail reader will let you look at the header.
Here is the complete header from an email I got from Cheaper Than Dirt. Note the red part. Blue parts edited for privacy.
From
[email protected] Wed Mar 15 15:16:09 2006
Return-path: <
[email protected]>
Envelope-to:
[email protected]Delivery-date: Wed, 15 Mar 2006 15:16:09 -0500
Received: from
my email host with local-bsmtp (Exim 4.52)
id 1FJcPX-000344-1H
for
[email protected]; Wed, 15 Mar 2006 15:16:09 -0500
X-Spam-Checker-Version: SpamAssassin 3.1.0 (2005-09-13) on
station026.123servers.com
X-Spam-Level:
X-Spam-Status: No, score=-1.6 required=4.0 tests=AWL,BAYES_00,FRONTPAGE,
HTML_MESSAGE autolearn=no version=3.1.0
Received: from [
64.95.77.164] (helo=c3.confirmedcc.com)
by
my email host with esmtp (Exim 4.52)
id 1FJcPW-00033x-Np
for
[email protected]; Wed, 15 Mar 2006 15:15:58 -0500
Received: from ws09 (loghost2.roving.com [10.200.200.19])
by c3.confirmedcc.com (Postfix) with ESMTP id 219B139CC4
for <
[email protected]>; Wed, 15 Mar 2006 15:15:51 -0500 (EST)
Message-ID: <1101244834536.1010979811803.442274.2.191458@scheduler>
Date: Wed, 15 Mar 2006 15:15:56 -0500 (EST)
From: Cheaper Than Dirt <
[email protected]>
Reply-To:
[email protected]To:
[email protected]Subject: New - and you get first pick
MIME-Version: 1.0
Content-Type: multipart/alternative;
boundary="----=_Part_7233558_848112826.1142453756400"
X-Roving-Queued: 20060315 03:15:56.400
X-Mailer: Roving Constant Contact 0 (http://www.constantcontact.com)
X-Return-Path-Hint:
[email protected]X-Roving-ID: 1101244834536
X-Lumos-SenderID: 1010979811803
X-Roving-CampaignId: 1101244834536
X-Roving-StreamId: 0
Status: R
---
No Expert
ETA Nevermind...he added specifics while I was putting all this together.