add:  if (gSmtpHostNameIsIllegal) { gSmtpHostNameIsIllegal = false; return false; } 
context: function onAccept() {  // Check if user/host have been modified.  if (!checkUserServerChanges(true))    return false;  onSave();    // hack hack - save the prefs file NOW in case we crash    try {        var prefs = Components.classes["@mozilla.org/preferences-service;1"]                              .getService(Components.interfaces.nsIPrefService);        prefs.savePrefFile(null);    } catch (ex) {        dump("Error saving prefs!\n");    }  return true;}
meta: 9421	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/9421/100f9782b1094f77d32cac9222cb24fea537f5d4/AccountManager.js/buggy/mailnews/base/prefs/resources/content/AccountManager.js