Hello, as you can see, I am digging deeper into the Seam Mail thing. By now, I have a POJO Seam component, event scoped, with an @Asynchronous method send(), which sends a mail (by calling renderer.render). This results in some strange behaviour (and no mails being sent). It seems I solved this by adding "@Synchronized" to the component (since it is a timing issue, I can never be really sure ...) But I have a question: Obviously when called two times simultaneously, the one renderer interferes with the other. In my mail class I could solve this by synchronizing it, but what about the front page renderer? If accidentally in the same moment a mail is rendered also a page is rendered? Will I have some very random-caused irreproducible strange problems in the future? View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4118700#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...