From: <glassfish_at_javadesktop.org>
Date: Wed, 24 Oct 2007 15:47:04 PDT

Use the admin console to add the property "mail.smtp.port" with value "26"
to the JavaMail resource. Equivalently, add a <property> subelement to the
<mail-resource> element in domain.xml:

<mail-resource ...>
  <property name="mail.smtp.port" value="26"/>
</mail-resource>
[Message sent by forum member 'shannon' (shannon)]

http://forums.java.net/jive/thread.jspa?messageID=241993