Spam that's not spam?

[xzxzzx]

Ok, I got this message. It looks like spam, but WTF? No link, no hidden message, no nothing. Here's the whole thing, including headers:

code:
X-Message-Status: n

X-SID-PRA: Dat Alvi <CatherineBlackley@user-0c90prd.cable.mindspring.com>

X-SID-Result: TempError

X-Message-Info: 6sSXyD95QpXRZ+yO9O9I01eT2MlQKVWXme/MfWRkXEo=

Received: from mc4-f18.hotmail.com ([65.54.190.154]) by imc3-s24.hotmail.com with Microsoft SMTPSVC(6.0.3790.211);

	 Sat, 2 Apr 2005 17:25:30 -0800

Received: from user-0c90prd.cable.mindspring.com ([24.144.103.109]) by mc4-f18.hotmail.com with Microsoft SMTPSVC(6.0.3790.211);

	 Sat, 2 Apr 2005 17:25:29 -0800

Date: Sun, 03 Apr 2005 01:11:51 +0000

From: Dat Alvi <CatherineBlackley@user-0c90prd.cable.mindspring.com>

To: ********@hotmail.com

Subject: =?iso-8859-1?B?LQ==?=

MIME-Version: 1.0

Content-Type: text/plain; charset=iso-8859-1

Content-Transfer-Encoding: 7bit

Return-Path: CatherineBlackley@user-0c90prd.cable.mindspring.com

Message-ID: <MC4-F18SBWYf5UPHvAo00026fc9@mc4-f18.hotmail.com>

X-OriginalArrivalTime: 03 Apr 2005 01:25:30.0296 (UTC) FILETIME=[06088B80:01C537EC]



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