To customize templates, copy the original template files (*.txt, *.html)
under /opt/osstech/share/mailman/templates/<language> directory to the following
directory and edit it. Do NOT edit the original template files!!

* /opt/osstech/etc/mailman/templates/site/<language>
    * Template directories for the site global
* /opt/osstech/etc/mailman/templates/domains/<domainname>
    * Template directories for domains
* /opt/osstech/etc/mailman/templates/lists/<listname>/<language>
    * Template directories for lists
