XFOR: Attachment with Name of Charset = iso-2022-JP

The information in this article applies to:

• Microsoft Exchange Server, version 4.0

SUMMARY

When the Microsoft Exchange Internet Mail Connector (IMC) receives a message that contains a character set that is not installed, the content of the message body is placed into an attachment containing the message. The file will contain an attachment display name of "Charset = XXX" (for example, Charset = iso-2022-JP).

This behavior does not give the recipient a clear indication of the reason for the location of the message contents, or instructions to access the attachment. The message is placed into the attachment (for example, ATT00000.txt).

The contents of the attachment can be accessed by using a viewer that can display the original character set.

MORE INFORMATION

Service Pack 1 for Microsoft Exchange contains a change in the way the IMC handles body parts with unknown character sets. The body of an inbound non- TNEF content conversion failure will be placed in one attachment and will include the following text to provide further information:

   This message was sent using a character set not supported on the
   Internet Mail Connector. The message text has been placed into an
   attachment. To view, double-click on the attachment. If the text isn't
   displayed correctly, save the attachment to disk, and then use a viewer
   that can display the original character set.

The body of an inbound TNEF content conversion failure will include at least two attachments. One attachment will include the first body part and have a standard text name and an attachment display name of "char = XXX" to indicate a character set was used that was not recognized (for example, ATT00000.txt; charset = ISO-2022-JP). The second attachment will contain the second body part and message content (for example, message.txt). The two attachments will be separated by the following message for clarification:

   The Internet Mail Connector received a message that could not be
   processed. View the original content by opening the attached message.