pan></dt>
<dd><code>os</code> - the stream to write to</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code>java.io.IOException</code> - if an error occurs writing to the 
                                        stream or if an error is generated
                                        by the jakarta.activation layer.</dd>
<dd><code><a href="MessagingException.html" title="class in jakarta.mail">MessagingException</a></code> - if an error occurs fetching the
                                     