Can I add more protocols to JavaMail?
You can add new protocols through third parties plugins. Sun maintains a list of plugins at http://java.sun.com/products/javamail/Third_Party.html. At the time of writing, there are plugins for secure mail (S/MIME), local storage, NNTP (usenet) and more. BenoĆ®t Marchal is a Belgian developer and writer. He is the author of XML by Example (two editions), Applied XML Solutions, and Java Web Services. There’s more on this topic at marchal.com.