SMTP Messages with TNEF Sent Via the Internet Mail Service May Lose Formatting and Attachments |
The information in this article applies to:
-
Microsoft Exchange Server, versions 5.0, 5.5
SYMPTOMS
When you receive SMTP messages with TNEF via the Internet Mail Service,
message formatting and attachments may be lost.
CAUSE
This problem only occurs when the X-MS-TNEF-CORRELATOR section of the SMTP
message header is wrapped onto a second line. The following an example from
a message:
X-MS-TNEF-Correlator: <5913080CA46DD111A98200A0C9960C101E3C@test.com>
If the above line is wrapped according to RFC 822 section 3.1.1, it would
appear as follows:
X-MS-TNEF-Correlator:(CRLF)
(Space)<5913080CA46DD111A98200A0C9960C101E3C@test.com>
When the TNEF Correlator is wrapped in the above manner, the IMAIL process
in the Microsoft Exchange information store does not interpret the header
correctly, and consequently it ignores the TNEF section of the message.
Because message formatting, rich-text definitions, and attachments can be
placed in the TNEF, they could also be lost.
WORKAROUND
To work around this problem, the originator of the message needs to turn
off rich text formatting.
STATUS
Microsoft has confirmed this to be a problem in Exchange Server version
5.0. A supported fix is now available, but has not been fully
regression-tested and should be applied only to systems experiencing this
specific problem. Unless you are severely impacted by this specific
problem, Microsoft recommends that you wait for the next Service Pack that
contains this fix. Contact Microsoft Technical Support for more
information.
This fix has been posted to the following Internet location:
ftp://ftp.microsoft.com/bussys/exchange/exchange-public/fixes/Eng/Exchg5.0/Post-SP2-STORE/
Microsoft has confirmed this to be a problem in Microsoft Exchange Server
version 5.5. This problem has been corrected in the latest U.S. Service
Pack for Microsoft Exchange Server version 5.5. For information on
obtaining the Service Pack, query on the following word in the Microsoft
Knowledge Base (without the spaces):
S E R V P A C K
Additional query words:
XADM
Keywords : XFOR
Version : winnt:5.0,5.5
Platform :
Issue type : kbbug
