Article ID: 297464 - View products that this article applies to.
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When a user attempts to send a plain-text message to an external Simple Mail Transfer Protocol (SMTP) or Internet mail recipient by using Microsoft Outlook 2000 or Microsoft Outlook 2002 with the Exchange Server information service in the profile, the message may be received as Hypertext Markup Language (HTML).
Additionally, in Exchange System Manager, in the Internet Message Formats properties, on the Message Formats tab, the message encoding is set to Multipurpose Internet Mail Extensions (MIME), or Provide body as HTML, or both. On the Advanced tab, Exchange rich-text format is set as Determined by individual user settings.
To resolve this problem, obtain the latest service pack for Microsoft Exchange 2000 Server. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:
(https://support.microsoft.com/kb/301378/EN-US/ )XGEN: How to Obtain the Latest Exchange 2000 Server Service Pack
To work around this problem, send the message by using Microsoft Outlook Express or send the message by using Microsoft Outlook with the Internet Mail information service in the profile.
Microsoft has confirmed that this is a problem in Microsoft Exchange 2000 Server. This problem was first corrected in Microsoft Exchange 2000 Server Service Pack 1.
Fixed in Exchange 2000 Service Pack 1 (SP1), build 6.0.4479 of Phatcat.dll.
For additional information, click the article number below to view the article in the Microsoft Knowledge Base:
(https://support.microsoft.com/kb/301452/EN-US/ )XGEN: List of Bugs Fixed in Exchange 2000 Server Service Pack 1