fixed email event handler "kind", resolves #1664
fixed email event handler "kind", resolves #1664

influxdata/docs.influxdata.com,influxdb/docs.influxdata.com,influxdata/docs.influxdata.com,influxdb/docs.influxdata.com,influxdb/docs.influxdata.com,influxdata/docs.influxdata.com,influxdata/docs.influxdata.com,influxdata/docs.influxdata.com