Mail Sent using Large Japanese/French Data Appears Garbled. (6201676)

When a large email message is received, users must click an attachment link (text/html or text/plain) within the message. If the content of this attachment includes non-ASCII characters, users may see corrupted data in the newly opened browser pane. This issue will be fixed in the next available patch.

Workaround

Manually select the appropriate encoding from the browser menu.