Outlook Express can usually display messages in the language in which they were sent. However, some messages, particularly those from newsgroups, often do not have enough information (or the information is incorrect) in the header file to display the correct language.
To change the language encoding for a message you are reading
Outlook Express displays incoming messages using the default encoding for reading messages unless the message header specifies a particular language encoding.
To set the default encoding for reading messages
When you reply to a message, it is sent in the same language encoding as the original. If you change the language encoding in your reply, the original characters may not appear properly unless you are sending the message in HTML (and the receiving program can read HTML). You can also send the message using Unicode; however, not all mail and newsreading programs can display a Unicode message.
To use a different encoding for sending a single message
New messages use the default encoding setting for sending messages.
To set the default encoding for sending messages