Java EE (Java Enterprise Edition) General Discussion

Whenever I send a plain/txt email with special characters e.g. � in the content, the message becomes an attachment with the following message shown in the content:

This message uses a character set that is not supported by the Internet
Service. To view the original message content, open the attached
message. If the text doesn't display correctly, save the attachment to
disk, and then open it using a viewer that can display the original
character set. <<message.txt>>

How can I send the email with the correct format?

Any help would be appreciated!

Thanks!