public void setQuota(int quota) {
        OfflineMessageStrategy.quota = quota;
        JiveGlobals.setProperty("xmpp.offline.quota", Integer.toString(quota));
    }
Controls what is done with offline messages.

@author Iain Shigeoka
xmppserver/src/main/java/org/jivesoftware/openfire/OfflineMessageStrategy.java