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If you are using uPortal, you may via uPortal with deployPortletApp or whatever the approved method for "plutofication" and deployment is for your version of uPortal.
If you have trouble publishing it successfully, please bring this up on the uportal-user list. Someone should be able to help you out there.
If you're having trouble, one thing to check is to be sure that you are using uPortal to deployPortletApp, or at least you're using something that adds the appropriate stuff to web.xml along with the appropriate portlet.tld in the correct place (which for uP 2.5.3 was (tomcat)/webapps/mailportlet/WEB-INF/tld/portlet.tld).
This portlet does not use or support the help view, so when publishing the portlet, in Channel Controls, "Editable" should be checked and "Has Help" and "Has About" should be unchecked.
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