Em client 8.2.1237 stopped accessing exchange server

18:47:41 imeineke@med.uni-goettingen.de [Exchange Web Services] MailClient.Storage.Application.OperationException
—> Microsoft.Exchange.WebServices.Data.EwsHttpWebException: Der Code der Serverantwort deutet auf keinen Erfolg hin: BadRequest (Bad Request).
at MailClient.Protocols.Exchange.ExchangeGenericCommand.Execute(WorkerStatus status)
— End of inner exception stack trace —
at MailClient.Protocols.Exchange.ExchangeGenericCommand.Execute(WorkerStatus status)
at MailClient.Commands.Command.Process(WorkerStatus status)
EnqueuedStackTrace =
at MailClient.Protocols.Exchange.ExchangeFolderSynchronizer.GoOnlinePre()
at MailClient.Protocols.Exchange.ExchangeAccount.GoOnlineInt()
at MailClient.Protocols.Common.AccountBase.ChangeOnlineState(Boolean online, OfflineReason offlineReason)
at MailClient.Protocols.Common.AccountBase.GoOnline()
at MailClient.Accounts.AccountList.<>c__DisplayClass19_1.b__1()
at System.Threading.Tasks.Task.InnerInvoke()
at System.Threading.Tasks.Task.<>c.<.cctor>b__277_0(Object obj)
at System.Threading.ExecutionContext.RunFromThreadPoolDispatchLoop(Thread threadPoolThread, ExecutionContext executionContext, ContextCallback callback, Object state)
at System.Threading.Tasks.Task.ExecuteWithThreadLocal(Task& currentTaskSlot, Thread threadPoolThread)
at System.Threading.Tasks.Task.ExecuteEntryUnsafe(Thread threadPoolThread)
at System.Threading.Tasks.Task.ExecuteFromThreadPool(Thread threadPoolThread)
at System.Threading.ThreadPoolWorkQueue.Dispatch()
at System.Threading._ThreadPoolWaitCallback.PerformWaitCallback()
GUIStatus_Exception_Reported = True
18:47:41 imeineke@med.uni-goettingen.de [Exchange Web Services] System.Threading.Tasks.TaskCanceledException: A task was canceled.
at MailClient.Storage.Synchronization.FolderSynchronizerExtensions.SynchronizeSubfoldersAsync(IFolderSynchronizer synchronizer, Folder folder, SynchronizationPriority priority, CancellationToken cancellationToken)
at MailClient.Protocols.Exchange.ExchangeAccount.SynchronizeIntAsync(Boolean forced)
at MailClient.Protocols.Common.SynchronizableMailAccount.<>c__DisplayClass6_0.<b__0>d.MoveNext()
GUIStatus_Exception_Reported = True

Program worked flawless upt to 3.5.2021
Access via WebApp still possible

Hallo imeineke,

ich kann leider nicht helfen, habe selbst kein Exchange Konto eingebunden.

Im Fehlerprotokoll taucht 2x Deine E-Mail Adresse auf. Ich würde die unkenntlich machen. Das Forum ist öffentlich zugänglich. Die Gefahr, dass “jemand” (ein Roboter) die Adresse “absaugt” und für Spam missbraucht, ist gegeben.