tee that a
 mailbox of that name exists.</div>
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<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="AddressException.html" title="class in jakarta.mail.internet">AddressException</a></code> - if the address isn't valid.</dd>
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<h4>isGroup</h4>
<pre class="methodSignature">public&nbsp;boolean&nbsp;isGroup()</pre>
<div class="block">Indicates whether this address is an RFC 822 group address.
 