ecipients</code>; Jakarta Mail
 will automatically encode and decode data when using these "higher
 level" methods.  The methods below are only needed when maniuplating
 raw MIME headers using <code>setHeader</code> and <code>getHeader</code>
 methods.  A brief description on handling such headers is given below: <p>

 RFC 822 mail headers <strong>must</strong> contain only US-ASCII
 characters. Headers that contain non US-ASCII characters must be
 encoded so that they contain only US-ASCII characters. Basi