Clarify delivery

xep-0369.xml

@@ -44,6 +44,7 @@
       Remove Legacy MIX Namespace;
       Add mix element in message to hold MIX additional information;
       Roster Update Clarifications;
+      Clarify when messages are delivered to clients;
     </p></remark>
   </revision>
   <revision>
@@ -2422,6 +2423,7 @@ This approach  enables flexible support of multiple clients for a MIX channel pa
 ]]></example>
 
   <p>
+    The server receiving the message will then deliver the messages to all online clients with status available and a non-negative resource priority.
     The following example shows how the participant's server modifies the inbound message to replace the bare JID in the 'to' with a full JID for each of two active MIX clients.
   </p>