检测来自EWS的已读电子邮件 [英] Detecting read emails from EWS

问题描述

我有一个C＃Outlook Addin，我试图检测用户最近在桌面浏览器未打开时读取电子邮件的时间（例如他们可能有从outlook mobile中读取它。理想情况下，当桌面外观重新启动时，我可以将收件箱文件夹项目限制为使用最近lastModificationTime的所有读取项目的
，但事实证明，当用户阅读电子邮件时，此属性不会更新。因此，如果他们只是在几天前阅读了一封电子邮件，那么lastModificationTime在几天前仍然是
（而不是几分钟前）。是否有任何推荐的+性能敏感方式来检查用户最近在桌面前景关闭时阅读的电子邮件？ 

I have a C# Outlook Addin and am trying to detect when a user recently read an email while the desktop outlook was not open (for example they could have read it from outlook mobile). Ideally, I would have been able to restrict the inbox folder items to look for all read items with a recent lastModificationTime when the desktop outlook is relaunched, but it turns out this property is not updated when a user reads an email. So if they just read an email from a few days ago, the lastModificationTime would still be a few days ago (as opposed to a few minutes ago). Is there any recommended+performance-sensitive way to check for emails a user recently read while the desktop outlook was closed? 

谢谢，

-Alper 

-Alper 

推荐答案

不，正如您已经发现的那样，读/未读状态不被视为电子邮件本身的一部分，并且更改不会更新最后修改日期。这样做是为了支持每用户读/未读状态（例如，对于公共文件夹）。

No, as you have already discovered, read/unread status is not considered part of the email itself and changing does nto update the last modified date. This is done to support per-user read/unread state (e.g. for the Public Folders).

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