payload: - alt1-mtalk.google.com - alt2-mtalk.google.com - alt3-mtalk.google.com - alt4-mtalk.google.com - alt5-mtalk.google.com - alt6-mtalk.google.com - alt7-mtalk.google.com - alt8-mtalk.google.com - mtalk-dev.google.com - mtalk-staging.google.com - mtalk.google.com - mtalk4.google.com