Trouble with IMAP SMTP

I am able to access and receive my mail, but I am unable to send mail. I have tried just about everything. I have been in touch with the IT Department at the University and since I have the correct settings and cannot send mail they sent me a copy of their instructions that work using Outlook Express. I was hoping to view them and adapt them to Apple's Mail, but no such luck.
The Instructions said to...
"Select ‘Outgoing server’ tab
Click on radio dial for ‘My Outgoing server (SMTP) requires…’
Make sure radio dial for ‘Use same settings as my incoming mail server’ is selected."
Based on the pictures I found that radio dial is a type of authentication but it is not listed in the authentication type drop down menu of Mail. I tried using password since it should be the same as the incoming server but that did not work. I tried using SSL as well, which also did not work. I tried using port 143 instead and received a similar error message. I have switched back to port 25 and receive the error message saying that the connection on port 25 timed out. Any ideas?
Thanks,
Jonathan G4

I am having a similar problem with Mail on my Ibook G4. I can receive email with no problem in Mail but when I attempt to send a message it just hangs and the message reads copying to Outbox. My cable provider is also my ISP and I have no problem sending and receiving mail using Mozilla. I have tried rebuilding the mailbox to no avail. In fact in order to quit Mail,I have to use Force Quit because it hangs in this copying process. I repaired permissions as well. What makes it even more curious is that I have a G4 Quicksilver desktop and have no problem using Mail to send and receive messages through the same ISP provider.
Both machines are running 10.3.9 but the mail program on the Ibook says it is 1.3.11. I thought 10.3.9 installed Mail 1.3.2 which is the latest version. Is this the possible source of the problem?
I Book G4 Mac OS X (10.3.9)
G4 Mac OS X (10.3.9)
G4

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Here you go:
Terminal:
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Received: from XXX (10.1.2.152) by
YYY (10.1.3.154) with Microsoft SMTP Server id
14.0.639.21; Tue, 12 Jan 2010 12:34:29 +0200
From: "XXX@YYY" <XXX@YYY>
Reply-To: <XXX@YYY>
To: Receiver <XXXX@YYY>
Message-ID: <1765234390.11263292469652.JavaMail.XXX@YYY>
Subject: Phone order: Mobile phone for mobile employees
Content-Type: multipart/mixed;
 boundary="----=_Part_1_1045289550.1263292469650"
Return-Path: ZZZ@YYY
Date: Tue, 12 Jan 2010 12:34:29 +0200
X-MS-Exchange-Organization-AuthSource: XYZ
X-MS-Exchange-Organization-AuthAs: Anonymous
MIME-Version: 1.0
------=_Part_1_1045289550.1263292469650
Content-Type: text/html; charset="UTF-8"
Content-Transfer-Encoding: 7bit
Content-Disposition: inline
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
 I would like to order the following phone:
 Mobile phone for mobile employees
 
 
 Best regards,
 XXX@YYY
 
------=_Part_1_1045289550.1263292469650--Cheers,
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Yup, looks like a bug in Exchange 2010, please report it to Microsoft.
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[http://java.sun.com/products/javamail/FAQ.html#imapserverbug|http://java.sun.com/products/javamail/FAQ.html#imapserverbug]

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