Getting this error on one of my Exchange 2016 servers, whether I use the automated script or run Update-MalwareFilteringServer.ps1 manually. I'm using an elevated PowerShell running as Domain Admin and member of Organization Management, and my execution policy is RemoteSigned.
C:\Program Files\Microsoft\Exchange Server\V15\scripts\Update-MalwareFilteringServer.ps1 : Error starting the anti-malware engine update.
At line:1 char:1
+ .\Update-MalwareFilteringServer.ps1 -Identity myserver.mydomain. ...
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : NotSpecified: (:) [Write-Error], WriteErrorException
+ FullyQualifiedErrorId : Microsoft.PowerShell.Commands.WriteErrorException,Update-MalwareFilteringServer.ps1
Suggestions?
Update: after the server sat for a while, Get-EngineUpdateInformation starting showing valid definitions, but the update command never did complete without error. I re-enabled the "Malware Agent" transport agent, which I had disabled to restore mail flow Monday, and everything seems OK.