Question about Outlook Express

I use personal Hotmail and my incoming mail has not worked for over a day.  I have checked my junk file, rules, blocked senders, etc...and see nothing else wrong.  This occurs regardless of computer, browser, network (business or home).  As an example, when I sent an email from my Champlain college email addess I get the following error (NOTE:  I get the same error when an I send an email to my hotmail account from gmail)->

Delivery has failed to these recipients or distribution lists:

*** Email address is removed for privacy ***
The recipient's e-mail address was not found in the recipient's e-mail system. Microsoft Exchange will not try to redeliver this message for you. Please check the e-mail address and try resending this message, or provide the following diagnostic text to your system administrator.

 Diagnostic information for administrators:

Generating server: alumni.iu.edu

*** Email address is removed for privacy ***
#< #5.1.1 smtp;550 5.1.1 RESOLVER.ADR.RecipNotFound; not found> #SMTP#

Original message headers:

Received: from mail102-va3-R.bigfish.com (216.32.180.111) by
 CH1PRD0710HT003.namprd07.prod.outlook.com (10.255.152.38) with Microsoft SMTP
 Server (TLS) id 14.16.164.2; Fri, 18 May 2012 12:25:33 +0000
Received: from mail102-va3 (localhost [127.0.0.1])           by
 mail102-va3-R.bigfish.com (Postfix) with ESMTP id 79AE8E0528    for
 <*** Email address is removed for privacy ***>; Fri, 18 May 2012 12:25:24 +0000 (UTC)
X-Forefront-Antispam-Report: CIP:216.93.144.65;KIP:(null);UIP:(null);IPV:NLI;H:nickel.champlain.edu;RD:nickel.champlain.edu;EFVD:NLI
X-SpamScore: 0
X-BigFish: ps0(zzc85fhzz1202hzz8275bh8275dhz2fh2a8h668h839hd25h)
Received-SPF: pass (mail102-va3: domain of champlain.edu designates 216.93.144.65 as permitted sender) client-ip=216.93.144.65; envelope-from=prvs=24857a89d1=*** Email address is removed for privacy ***; helo=nickel.champlain.edu ;hamplain.edu ;
Received: from mail102-va3 (localhost.localdomain [127.0.0.1]) by mail102-va3
 (MessageSwitch) id 1337343921939980_20810; Fri, 18 May 2012 12:25:21 +0000
 (UTC)
Received: from VA3EHSMHS036.bigfish.com (unknown [10.7.14.241])        by
 mail102-va3.bigfish.com (Postfix) with ESMTP id D8B9B20045       for
 <*** Email address is removed for privacy ***>; Fri, 18 May 2012 12:25:21 +0000 (UTC)
Received: from nickel.champlain.edu (216.93.144.65) by
 VA3EHSMHS036.bigfish.com (10.7.99.46) with Microsoft SMTP Server (TLS) id
 14.1.225.23; Fri, 18 May 2012 12:25:21 +0000
Received: from Neon.champlain.edu (neon.champlain.edu [216.93.150.213])          by
 nickel.champlain.edu (8.14.4/8.14.4) with ESMTP id q4ICPTvj012830
            (version=TLSv1/SSLv3 cipher=AES128-SHA bits=128 verify=NOT) for
 <*** Email address is removed for privacy ***>; Fri, 18 May 2012 08:25:29 -0400
Received: from mailbox.champlain.edu ([fe80::912d:b80d:2f52:82e7]) by
 Neon.champlain.edu ([fe80::c24:c080:541d:c158%10]) with mapi; Fri, 18 May
 2012 08:25:29 -0400
From: "Porter, Mark" <*** Email address is removed for privacy ***>
To: "*** Email address is removed for privacy ***" <*** Email address is removed for privacy ***>
Date: Fri, 18 May 2012 08:25:20 -0400
Subject: test
Thread-Topic: test
Thread-Index: Ac008Uo0OC9y3d0JTSm3c7fbYOffTQ==
Message-ID: <*** Email address is removed for privacy ***>
Accept-Language: en-US
Content-Language: en-US
X-MS-Has-Attach:
X-MS-TNEF-Correlator:
x-antivirus: avast!
x-antivirus-status: Clean
acceptlanguage: en-US
Content-Type: multipart/alternative;
            boundary="_000_6E6944FEB634AC48B241A53AE989A402013B6D33F2F5MAILBOXcham_"
MIME-Version: 1.0
X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:5.6.7580,1.0.260,0.0.0000
 definitions=2012-05-18_05:2012-05-18,2012-05-18,1970-01-01 signatures=0
X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 ipscore=0
 suspectscore=1 phishscore=0 bulkscore=1 adultscore=0 classifier=spam
 adjust=0 reason=mlx scancount=1 engine=6.0.2-1203120001
 definitions=main-1205180085
Return-Path: prvs=24857a89d1=*** Email address is removed for privacy ***