It seems AAPL are now using MSFT mail services to deliver "Important" messages.
Received: from CO9EHSNDR001.bigfish.com (mail14-co9on0067.outbound.messaging.microsoft.com [157.56.211.67])
(using TLSv1 with cipher AES128-SHA (128/128 bits))
(No client certificate requested)
by beaujolais.extremis.net (Postfix) with ESMTPS id 3b4rGJ5GXPzXCl8
for <[email protected]>; Tue, 7 May 2013 20:19:04 +0100 (BST)
Received: from co9outboundpool.messaging.microsoft.com (10.236.132.244) by
CO9EHSNDR001.bigfish.com (10.236.130.55) with Microsoft SMTP Server (TLS) id
14.1.225.23; Tue, 7 May 2013 19:19:01 +0000
Received: from mail140-co9-R.bigfish.com (10.236.132.244) by
CO9EHSOBE035.bigfish.com (10.236.130.98) with Microsoft SMTP Server id
14.1.225.23; Tue, 7 May 2013 19:19:01 +0000
Received: from mail140-co9 (localhost [127.0.0.1]) by
mail140-co9-R.bigfish.com (Postfix) with ESMTP id B3D0338010A; Tue, 7 May
2013 19:19:01 +0000 (UTC)
X-Forefront-Antispam-Report: CIP:136.165.233.224;KIP:(null);UIP:(null);IPV:NLI;H:incoming1.louisville.edu;RD:incoming1.louisville.edu;EFVD:NLI
X-BigFish: VPS225(zzc85dh77f5h4015I609I1e89tqzz1f42h1fc6h1d77h1ee6h1de0h1fdah1202h1e76h1d1ah1d2ahzz17326ah1954cbh8275bh1b9c21hz2dh668h839hd24hf0ah11a0h1288h12a5h12bdh137ah1441h1504h1537h153bh162dh1631h16a6h1758h18b6h18e1h1946h19b5h1b0ah1bceh1d0ch1d3fh10a4m1d02im)
X-FB-OUTBOUND-SPAM: yes
X-SpamScore: 225
Received: from mail140-co9 (localhost.localdomain [127.0.0.1]) by mail140-co9
(MessageSwitch) id 136795434047501_1278; Tue, 7 May 2013 19:19:00 +0000
(UTC)
Received: from CO9EHSMHS032.bigfish.com (unknown [10.236.132.234]) by
mail140-co9.bigfish.com (Postfix) with ESMTP id F0E2A320063; Tue, 7 May 2013
19:18:59 +0000 (UTC)
Received: from incoming1.louisville.edu (136.165.233.224) by
CO9EHSMHS032.bigfish.com (10.236.130.42) with Microsoft SMTP Server id
14.1.225.23; Tue, 7 May 2013 19:18:59 +0000
Message-ID: <[email protected]>
Received: from unknown (HELO Sean-PC.home) ([109.144.240.178]) by
smtp1.louisville.edu with ESMTP/TLS/DHE-RSA-AES256-SHA; 07 May 2013 15:18:42
-0400
Content-Type: multipart/alternative; boundary="===============1724789343=="
MIME-Version: 1.0
Subject: Important Message From Apple Store
To: Recipients <[email protected]>
From: Apple <[email protected]>
Date: Tue, 7 May 2013 20:18:35 +0100
Reply-To: <[email protected]>
X-OriginatorOrg: louisville.edu
Of course I didn't follow any of the links in the email 😄