XFOR: Outbound SMTP with 8-Bit Data in the Message Body
The information in this article applies to:
- Microsoft Exchange Server versions 5.0 and 5.5
SYMPTOMS
Outbound SMTP messages from the Internet Mail Service may contain 8-bit
data in the message body, even though the Internet Mail Service is
configured to use UUENCODE and the US-ASCII character set.
CAUSE
The 8-bit data should be mapped to the 7-bit equivalents. Outlook 98
introduces a property that incorrectly signals the Internet Mail Service to
use the ISO8859-1 character set, instead of US-ASCII.
RESOLUTION
To resolve this problem, obtain the latest service pack for Exchange Server
version 5.5. For more information, please see the following article in the
Microsoft Knowledge Base:
ARTICLE-ID: Q191014
TITLE : 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: Store
File Name Version
-------------------------
Store.exe 5.5.2438.0
Mdbmsg.dll 5.5.2438.0
Gapi32.dll 5.5.2438.0
Store.exe 5.0.1461.75
Mdbmsg.dll 5.0.1461.75
STATUS
STATUS
Microsoft has confirmed this to be a problem in Microsoft Exchange Server
versions 5.0 and 5.5.
MORE INFORMATION
The Internet Mail Service will encode outbound mail according to the
following criterion:
- If the Internet Mail Service is configured as MIME, the Internet Mail
Service encodes the 8-bit data in either base64 or quoted printable.
- If the Internet Mail Service is configured to send UUENCODE and the
outbound character set specified is US-ASCII, then the Internet Mail
Service will take the 8-bit data and match it to the closest 7-bit
equivalent.
- If the Internet Mail Service is configured to send UUENCODE with the
outbound character set specified as ISO-8859-1, then the 8-bit data
should be left in the body of the message.
Keywords : exc55sp2fix
Version : WinNT:5.0,5.5
Platform : winnt
Issue type : kbbug
Solution Type : kbfix
