Microsoft KB Archive/297781

= You repeatedly receive a prompt for credentials in Outlook 2002 when you log on to the e-mail server =

Article ID: 297781

Article Last Modified on 2/19/2007

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APPLIES TO


 * Microsoft Outlook 2002 Standard Edition
 * Microsoft Exchange 2000 Enterprise Server
 * Microsoft Exchange 2000 Server Standard Edition
 * Microsoft Exchange Server 5.5 Standard Edition

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This article was previously published under Q297781





For a Microsoft Outlook 2000 version of this article, see 218315.



SYMPTOMS
If you connect to Microsoft Exchange 5.5 or Microsoft Exchange 2000 to send or receive messages, you are repeatedly prompted for credentials and do not receive an error message. If you attempt to authenticate to the server through Telnet, the following error message may occur:

Task 'lima - Sending' reported error (0x800CCC0F) : 'The connection to the server was interrupted. If this problem continues, contact your server administrator or Internet service provider (ISP). The server responded: 454 5.7.3 Client was not authenticated.'



CAUSE
This problem occurs because the Internet Mail Connector on the Exchange server has been set to only allow Integrated Windows Authentication or Secure Password Authentication.



RESOLUTION
Use the following steps to resolve this problem:
 * 1) Start Outlook.
 * 2) On the Tools menu, click E-mail Accounts.
 * 3) In the E-mail Accounts dialog box, click View or change the existing e-mail accounts, and then click Next.
 * 4) Click the account that you want to change, and then click Change.
 * 5) Under Logon Information, click Log on using Secure Password Authentication (SPA).
 * 6) Click Next, and then click Finish.



STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article.



MORE INFORMATION
For additional information about security settings on the Internet Mail connector in Exchange 5.0, 5.5 and 2000, click the article number below to view the article in the Microsoft Knowledge Base:

200788 XFOR: POP3 or IMAP4 Client Cannot Send SMTP Mail

Keywords: kberrmsg kbemail kbbug KB297781

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