Thanks Mathias.  Do you(or any other readers know enough about the server internals on any of the specific server products to understand how XEP-0033 is typically implemented (I'm currently evaluating OpenFire)?  Just wondering if there are any major pros/cons to using something like XEP-0033 versus some sort of dynamic PubSub operation or even a custom component that simply loops through and sends the messages out synchronously one-at-a-time.  Bryan <div class="gmail_quote">On Wed, Nov 26, 2008 at 1:07 PM, Matthias Wimmer <m@tthias.eu> wrote: <blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"> Hi Bryan! Bryan Morgan schrieb:<div class="Ih2E3d"> <blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"> * The inbound item picked up off the queue could also be used to determine the list of valid recipients, and then.....I assume....loop through them one at a time and send them individiual messages??  Again, seems to work at a small scale but maybe not at a large scale?  Is there a way to build a dynamic list of users and have XMPP send messages to that list?  Are there practical limitations on handling the size of this list or are there "sharding" approaches for big XMPP broadcasts like this? </blockquote> </div> Probably not exactly what you are looking for, but have you seen "XEP-0033: Extended Stanza Addressing"? You still would have to provide all receipients, but could send the message within one stanza. This XEP can be used as a multicast service. Matthias _______________________________________________ JDev mailing list FAQ: <a href="http://www.jabber.org/discussion-lists/jdev-faq" target="_blank">http://www.jabber.org/discussion-lists/jdev-faq</a> Forum: <a href="http://www.jabberforum.org/forumdisplay.php?f=20" target="_blank">http://www.jabberforum.org/forumdisplay.php?f=20</a> Info: <a href="http://mail.jabber.org/mailman/listinfo/jdev" target="_blank">http://mail.jabber.org/mailman/listinfo/jdev</a> Unsubscribe: <a href="mailto:JDev-unsubscribe@jabber.org">JDev-unsubscribe@jabber.org</a> _______________________________________________ </blockquote></div>