Exchange Server 2019 Event id: 1040 MsExchangeActiveSync Uyarısı
The average of the most recent heartbeat intervals [207] for request [Ping] used by clients is less than or equal to [540]. Make sure that your firewall configuration is set to work correctly with Exchange ActiveSync and direct push technology. Specifically, make sure that your firewall is configured so that requests to Exchange ActiveSync do...OKUMAYA DEVAM ET