XFOR: Internet Mail Service Sends MIME Plain Text as Both HTML and Plain Text

ID: Q222508

The information in this article applies to:

Microsoft Exchange Server, version 5.5

IMPORTANT: This article contains information about editing the registry. Before you edit the registry, make sure you understand how to restore it if a problem occurs. For information about how to do this, view the "Restoring the Registry" Help topic in Regedit.exe or the "Restoring a Registry Key" Help topic in Regedt32.exe.

SYMPTOMS

When you send plain text from an Outlook client that has an Exchange Server as the backend with the Internet Mail Service configured to send plain text or HTML, the Internet Mail Service overrides the user's choice, and sends both plain text and HTML. When MCI Mail or other plain text mail readers receive a message as MIME/multipart/alternative, the recipient gets one e-mail message with plain text at the top followed by the same message embedded in HTML tags.

CAUSE

The Internet Mail Service doesn't get the sender's option in the message. As a result it, sends both the plain text and the HTML.

RESOLUTION

To resolve this problem, obtain the latest service pack for Exchange Server version 5.5. For additional information, please see the following article in the Microsoft Knowledge Base:

Q191014 XGEN: How to Obtain the latest Exchange Server 5.5 Service Pack

The English version of this fix should have the following file attributes or later:

Component: Internet Mail Service

File name	Version
Gapi32.dll	5.5.2571.0
Imcmsg.dll	5.5.2571.0
Mdbmsg.dll	5.5.2571.0
Msexcimc.exe	5.5.2571.0
Store.exe	5.5.2571.0

This hotfix has been posted to the following Internet location as Psp2imca.zip and Psp2imci.zip:

ftp://ftp.microsoft.com/bussys/exchange/exchange-public/fixes/Eng/Exchg5.5/PostSP2/imc-fix

STATUS

Microsoft has confirmed this to be a problem in Microsoft Exchange Server version 5.5. This problem was first corrected in Exchange Server 5.5 Service Pack 3.

Additional query words:

Keywords : exc55 EXC55SP3Fix
Version : winnt:5.5
Platform : winnt
Issue type : kbbug