Our Exchange Server 2016 have enabled Malware Filtering features. I discovered that all Windows application logs appear Windows Event ID 6035. Sometimes, event ID 6032 and 6027. All definition download cannot update. Can anyone help?
Event ID : 6035
MS Filtering Engine Update process was unsuccessful in testing an engine update.
Event ID : 6032
MS Filtering Engine Update process has timed out on the downloaded of an update for Microsoft engine.
Event ID : 6027
MS Filtering Engine Update process was unsuccessful to download the engine the engine update for Microsoft from Primary Update Path.
Reason: "There was a catastrophic error while attempting to update the engine. Error: DownloadEngine failed and there are no further update paths available. Engine Id: 1 Engine Name: Microsoft"