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pup2022's avatar
pup2022
Copper Contributor
Dec 22, 2022

Shared Inbox folders not updating on new e-mail - Exception System.ArgumentNullException in EWS Log

I've been chasing down an error for a few months now.   With one of the Outlook clients for a specific user I have the following issue: Outlook does not refreshes inboxes of Shared Mailboxes (Examp...
Exchange Server
Ahmed_Masoud97's avatar
Ahmed_Masoud97
Steel Contributor
Dec 24, 2022

Hello pup2022,

 

here is Ahmed a community visitor 😉

Let me try to help you 🙂

 

You have tried several troubleshooting steps.....

 

One possible cause of this issue could be a problem with the EWS request being made by Outlook. The error message "ErrorInternalServerError" suggests that there is an issue with the server. It may be worth checking the Exchange logs for more information on the specific error that is occurring. You could also try enabling EWS logging in Outlook to see if that provides any additional details on the issue.

 

Another possibility is that there is a problem with the network connection or firewall settings that is preventing the EWS request from being completed successfully. Make sure that the necessary ports are open and that there are no issues with the network that could be causing the problem.

 

#Reminder with the basic TSG;


Best of the best 🙂

Ahme:D

pup2022's avatar
pup2022
Copper Contributor
Dec 25, 2022
Hello Ahme

Thanks for your reply.

I checked the network multiple times and I also made sure that the reverse proxy is not blocking anything. But as I can see both request and reply within IIS and EWS and do have to assume that there is no network issue. I also did further steps debugging the network.

I use the HealthChecker of https://microsoft.github.io/CSS-Exchange/Diagnostics/HealthChecker/ to verify the correct functioning of the Exchange Server Services.

Best

Philipp
  • Ahmed_Masoud97's avatar
    Ahmed_Masoud97
    Steel Contributor
    Dec 25, 2022
    I would recommend that you contact your support who is responsible for further troubleshooting. They will have access to specific tools that may be able to help identify the cause of the issue (after giving them the Logs). It's also important to note that the support team will have a better understanding of your specific environment and any customizations or configurations that may be impacting the issue.