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HI Team,
WE have in house application Newcase that actually sends out email from NewCase to EWS via ttps://autodiscover.INTLSOS.com/Autodiscover/Autodiscover.svc end point. However, this url is not reachable and we are getting below error from the Newcase app Log, i may need someone with EWS expertise to assist on this matter.
Exception Time: 10/5/2023 6:00:08 PM
Exception Message: The request failed. The remote server returned an error: (500) Internal Server Error.
Stack Trace: at Microsoft.Exchange.WebServices.Autodiscover.AutodiscoverRequest.InternalExecute() in \\REDMOND\EXCHANGE\BUILD\E15\15.00.0913.015\SOURCES\sources\dev\EwsManagedApi\src\EwsManagedApi\Autodiscover\Requests\AutodiscoverRequest.cs:line 185
at Microsoft.Exchange.WebServices.Autodiscover.GetUserSettingsRequest.Execute() in \\REDMOND\EXCHANGE\BUILD\E15\15.00.0913.015\SOURCES\sources\dev\EwsManagedApi\src\EwsManagedApi\Autodiscover\Requests\GetUserSettingsRequest.cs:line 95
at Microsoft.Exchange.WebServices.Autodiscover.AutodiscoverService.InternalGetUserSettings(List`1 smtpAddresses, List`1 settings, Nullable`1 requestedVersion, Uri& autodiscoverUrl) in \\REDMOND\EXCHANGE\BUILD\E15\15.00.0913.015\SOURCES\sources\dev\EwsManagedApi\src\EwsManagedApi\Autodiscover\AutodiscoverService.cs:line 1064
at Microsoft.Exchange.WebServices.Autodiscover.AutodiscoverService.GetSettings[TGetSettingsResponseCollection,TSettingName](List`1 identities, List`1 settings, Nullable`1 requestedVersion, GetSettingsMethod`2 getSettingsMethod, Func`1 getDomainMethod) in \\REDMOND\EXCHANGE\BUILD\E15\15.00.0913.015\SOURCES\sources\dev\EwsManagedApi\src\EwsManagedApi\Autodiscover\AutodiscoverService.cs:line 920
at Microsoft.Exchange.WebServices.Autodiscover.AutodiscoverService.GetUserSettings(List`1 smtpAddresses, List`1 settings) in \\REDMOND\EXCHANGE\BUILD\E15\15.00.0913.015\SOURCES\sources\dev\EwsManagedApi\src\EwsManagedApi\Autodiscover\AutodiscoverService.cs:line 878
at Microsoft.Exchange.WebServices.Autodiscover.AutodiscoverService.InternalGetSoapUserSettings(String smtpAddress, List`1 requestedSettings) in \\REDMOND\EXCHANGE\BUILD\E15\15.00.0913.015\SOURCES\sources\dev\EwsManagedApi\src\EwsManagedApi\Autodiscover\AutodiscoverService.cs:line 827
at Microsoft.Exchange.WebServices.Autodiscover.AutodiscoverService.GetUserSettings(String userSmtpAddress, UserSettingName[] userSettingNames) in \\REDMOND\EXCHANGE\BUILD\E15\15.00.0913.015\SOURCES\sources\dev\EwsManagedApi\src\EwsManagedApi\Autodiscover\AutodiscoverService.cs:line 1667
at GraphAPITestClient.EmailHelperEWS.GetExchangeEWsURL(String emailaddress) in C:\PoC\GraphAPITestClient\GraphAPITestClient\EmailHelperEWS.cs:line 357
at GraphAPITestClient.EmailHelperEWS.<SendEmailThruEws>d__5.MoveNext() in C:\PoC\GraphAPITestClient\GraphAPITestClient\EmailHelperEWS.cs:line 98
Recent changes from Exchange Server :
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(41.6, 80%, 14%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EAL%3C/text%3E%3C/svg%3E)
Hi,
Welcome to the Microsoft Q&A platform!
According to your description, this issue is more related to development, so I changed the tag to exchange server development.
Thank you for your understanding, and I hope your problem can be solved soon!
Even when I tested a DL using GRAPH API, I got the error below :
Its m365 DIstribution List using the in house NEWCASE Application
User must have a mailbox for name resolution operations. at Microsoft.Exchange.WebServices.Data.ServiceResponse.InternalThrowIfNecessary()
at Microsoft.Exchange.WebServices.Data.MultiResponseServiceRequest`1.Execute()
at Microsoft.Exchange.WebServices.Data.ExchangeService.ExpandGroup(EmailAddress emailAddress)
at Microsoft.Exchange.WebServices.Data.ExchangeService.ExpandGroup(String smtpAddress)
at GraphAPITestClient.EmailHelperEWS.<SendEmailThruEws>d__5.MoveNext() in C:\PoC\GraphAPITestClient\GraphAPITestClient\EmailHelperEWS.cs:line 131