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Microsoft Exchange 2019 Event ID 4999 and 1003

Anonymous
2023-11-29T19:22:16+00:00

Hello,

Lately we have been seeing a lot of these errors in event viewer

Everything is working fine , we can connect to ECP/OWA and the OAUTH certificate is valid

we are just wondering why we get so many of them... ( Server 2019 STD with Exchange 2019 STD CU13 onpremise )

it usually start with 4999 then it's followed by about 20/30times the same 1003 error

Event 4999 occurred at 2023-11-29 13:33:20. <br><br>------------------- <br><br>Date Time: 2023-11-29 13:33:20 <br><br>Event Source: MSExchange Common <br><br>Event Category: 1 <br><br>Event Type: Error <br><br>Event ID: 4999 <br><br>Event Log Name: Application <br><br>User: N/A <br><br>Computer: SERVER.entreprise.local <br><br>Description: <br><br>Watson report about to be sent for process id: 21628, with parameters: E12IIS, c-RTL-AMD64, 15.01.2507.034, w3wp#MSExchangeECPAppPool, M.E.Data.ApplicationLogic, M.E.D.A.C.BackEndServer.FromString, System.ArgumentException, 34ec-dumptidset, 15.01.2507.034. <br><br>ErrorReportingEnabled: True <br><br> <br><br>Event Parameters: <br><br>21628 <br><br>E12IIS <br><br>c-RTL-AMD64 <br><br>------------------- <br><br>Report generated on: server.entreprise.local
Event 1003 occurred at 2023-11-29 13:33:26. <br><br>------------------- <br><br>Date Time: 2023-11-29 13:33:26 <br><br>Event Source: MSExchange Front End HTTP Proxy <br><br>Event Category: 1 <br><br>Event Type: Error <br><br>Event ID: 1003 <br><br>Event Log Name: Application <br><br>User: N/A <br><br>Computer: SERVER.entreprise.local <br><br>Description: <br><br>[Ecp] An internal server error occurred. The unhandled exception was: System.ArgumentException: Invalid input value <br><br>Parameter name: input <br><br>at Microsoft.Exchange.Data.ApplicationLogic.Cafe.BackEndServer.FromString(String input) <br><br>at Microsoft.Exchange.HttpProxy.BEResourceRequestHandler.ResolveAnchorMailbox() <br><br>at Microsoft.Exchange.HttpProxy.ProxyRequestHandler.InternalBeginCalculateTargetBackEnd(AnchorMailbox& anchorMailbox) <br><br>at Microsoft.Exchange.HttpProxy.ProxyRequestHandler.b__279_0() <br><br>at Microsoft.Exchange.Common.IL.ILUtil.DoTryFilterCatch(Action tryDelegate, Func2 filterDelegate, Action1 catchDelegate) <br><br>Event Parameters: <br><br>Ecp <br><br>System.ArgumentException: Invalid input value Parameter name: input at Microsoft.Exchange.Data.ApplicationLogic.Cafe.BackEndServer.FromString(String input) at Microsoft.Exchange.HttpProxy.BEResourceRequestHandler.ResolveAnchorMailbox() at Microsoft.Exchange.HttpProxy.ProxyRequestHandler.InternalBeginCalculateTargetBackEnd(AnchorMailbox& anchorMailbox) at Microsoft.Exchange.HttpProxy.ProxyRequestHandler.b__279_0() at Microsoft.Exchange.Common.IL.ILUtil.DoTryFilterCatch(Action tryDelegate, Func2 filterDelegate, Action1 catchDelegate) <br><br>%String3% <br><br>------------------- <br><br>Report generated on: server.entreprise.local
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  1. Anonymous
    2023-11-30T05:44:13+00:00

    Hello Logibm

    Good day!

    Thank you for posting in Microsoft Community forum.  
      
    From the description above, I understand your question is related to Exchange server.   
      
    Since there are no engineers dedicated to Exchange in this forum. To be able to get a quick and effective handling of your issue, I recommend that you repost your question in the Q&A forum, where there will be a dedicated engineer to give you a professional and effective reply.   Here is the link for Q&A forum: 
    Questions - Microsoft Q&A Click the "Ask a Question" button in the upper right corner to post your question and select related tags.

    Regards,

    Karlie

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