Question

我正在使用 Microsoft.graph API 从Office365帐户读取电子邮件。同时读取多个帐户时遇到问题。对于某些帐户，数据会被跳过。

例如如果xyx@microsoft.com帐户的文件夹“收件箱”中包含大约 90k 封电子邮件，那么从API读取电子邮件时，我们只会收到大约 40000 封电子邮件。当我们放置多个帐户进行迁移时，会观察到此结果。对于单帐户迁移，它可以正常工作。

ExcMsg  : **Too many concurrent connections opened., Cannot open mailbox.** 
Stack: 
    at Microsoft.Exchange.WebServices.Data.ServiceResponse.InternalThrowIfNecessary(),    
    at Microsoft.Exchange.WebServices.Data.MultiResponseServiceRequest`1.<ExecuteAsync>d__6.MoveNext(),
 --- End of stack trace from previous location where exception was thrown ---,
    at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw(),
    at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task),
    at Microsoft.Exchange.WebServices.Data.ExchangeService.<BindToItem>d__71.MoveNext(), 
--- End of stack trace from previous location where exception was thrown ---,
    at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw(),
    at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task),
    at Microsoft.Exchange.WebServices.Data.ExchangeService.<BindToItem>d__72`1.MoveNext()

if (MessagesList != null && MessagesList.NextPageRequest != null)
    MessagesListRequest = MessagesList.NextPageRequest;

MessagesList = MicrosoftHelper.InvokeApiCall(() =>
    {
         return MessagesListRequest.GetAsync().Result;
    }, this.Context);

where MessagesList  is IMailFolderMessagesCollectionPage

Microsoft.graph API无法读取电子邮件

0 个答案: