No, the automatic lookup done by entityHome only works if you set the id. If you want to do a lookup by mailbox, you'll have to write code. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4075568#4075568 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4075568