XIMS: Netscape IMAP4 Clients Cannot View the Message Body

If a Microsoft Outlook Messaging Application Programming Interface (MAPI) client sends a message to a distribution list (DL) and multiple mailboxes exist on the same information store, when a user uses a Netscape Navigator Internet Message Access Protocol, Version 4rev1 (IMAP4) client to open the message, the message body is visible to that first user, but when subsequent users open the message, the body of the message may not be visible. Restarting the information store or changing the order of retrieval does not make the message body visible after the message is opened by the first Netscape IMAP4 user.

This problem can occur if there is a Multipurpose Internet Mail Extensions (MIME) message boundary mismatch.

A supported fix is now available from Microsoft, but it is only intended to correct the problem that is described in this article. Apply it only to computers that are experiencing this specific problem. This fix may receive additional testing. Therefore, if you are not severely affected by this problem, Microsoft recommends that you wait for the next Exchange Server 5.5 service pack that contains this hotfix.

To resolve this problem immediately, contact Microsoft Product Support Services to obtain the fix. For a complete list of Microsoft Product Support Services phone numbers and information about support costs, visit the following Microsoft Web site:NOTE: In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The typical support costs will apply to additional support questions and issues that do not qualify for the specific update in question.

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

Component: Internet mail

To work around this problem if a user does not see the message body, advise the user to forward the message to himself or herself; this rebuilds the message boundary and makes the message body visible.

Microsoft has confirmed that this is a problem in Microsoft Exchange Server 5.5.

NOTE: After you apply this fix, the old messages in the information store are still missing their body for Netscape IMAP4 clients. The fix only changes this behavior for any new messages that are sent from MAPI clients and retrieved by a Netscape IMAP4 client.