Answer
PROBLEM
Items appear to be filtered and marked as spam, but copies of those spam messages are stored in the folder ..\Antispam\failedmail.The following excerpt can be found in log file ..\GFI\MailEssentials\Antispam\DebugLogs\GfiAsRtSubmittedAgent.log:
"error ","GfiAsRtSubmittedAgent","error: ExceptionSystem.InvalidCastException: Return argument has an invalid type.
; at System.Runtime.Remoting.Proxies.RealProxy.ValidateReturnArg(Object arg, Type paramType)
; at System.Runtime.Remoting.Proxies.RealProxy.PropagateOutParameters(IMessage msg, Object[] outArgs, Object returnValue)
; at System.Runtime.Remoting.Proxies.RealProxy.PrivateInvoke(MessageData& msgData, Int32 type)
; at ContentSecurity.ML.TicketManager.Base.ITicketManager.getTicketStatus(String ticketid, String key, Boolean delete, Boolean& status)
; at System.Runtime.Remoting.Proxies.RealProxy.ValidateReturnArg(Object arg, Type paramType)
; at System.Runtime.Remoting.Proxies.RealProxy.PropagateOutParameters(IMessage msg, Object[] outArgs, Object returnValue)
; at System.Runtime.Remoting.Proxies.RealProxy.PrivateInvoke(MessageData& msgData, Int32 type)
; at ContentSecurity.ML.TicketManager.Base.ITicketManager.getTicketStatus(String ticketid, String key, Boolean delete, Boolean& status)
ENVIRONMENT
- GFI MailEssentials
- Microsoft Exchange Server 2007, 2010, 2013
SOLUTION
-
Open the Microsoft Exchange Management console and run the following command: Get-Transportagent.
- Verify that the GfiAVSmtpAgent and GfiAVRoutingAgent are both set to true.
- If turned off, enable them using the following commands:
- Enable-transportagent GfiAvSmtpAgent
- Enable-transportagent GfiAvRoutingAgent
- Restart the Microsoft Transport Service.