text/plain;;        x-java-content-handler=com.sun.mail.handlers.text_plain
text/html;;         x-java-content-handler=com.sun.mail.handlers.text_html
text/xml;;          x-java-content-handler=com.sun.mail.handlers.text_xml
multipart/*;;       x-java-content-handler=com.sun.mail.handlers.multipart_mixed; x-java-fallback-entry=true
message/rfc822;;    x-java-content-handler=com.sun.mail.handlers.message_rfc822