In my case I found it happening on at least 50% of people that use shared mailboxes.
I've seen this problem across multiple clients, multiple tenants and never found a solution. Office 2016 32 bit. The “Mail to keep offline” slider does not affect shared folders in Outlook 2013 (and older versions). Starting in Outlook 2016, the Mail to keep offline setting applies to your own mailbox, shared mailboxes, and public folder favorites if the following conditions are true:.
Die eine Mail wird hierbei richtig angezeigt; bei der anderen ist der der E-Mail Text „The attached message was sent by a member of this shared mailbox. This problem has existed since the Office 365 version of Outlook 2016 came out.
Outlook is configured to use Cached Exchange mode. The Outlook 2016, Outlook 2019 or Outlook for Office 365 user interface (UI) lets you set the Mail to keep offline setting to the additional values of three days, 1 week, and 2 weeks. Beim Senden einer E-Mail aus dem freigegebenen Postfach haben wir so allerdings immer 2 E-Mails im Archivordner der gesendeten Elemente. When in Outlook 2016 the shared mailbox in not syncing. The Mail to keep offline slider in the Server Settings dialog box in Outlook 2016 has been updated to apply to shared folders and lets you set a smaller synchronization window, available by default with Cached Exchange Mode in Outlook 2016. UPDATE: you have probably already noticed that Outlook categories are not synchronized by means of these solutions. If you are the “owner” of a Shared Mailbox account, your best solution is to turn off “Download shared folders,” as explained above or upgrade to Outlook 2016. Outlook is configured to use Cached Exchange mode. The May 3, 2016, update for Outlook 2016 allows you to set these additional values by using the SyncWindowSettingDays registry data. Under Offline Settings, move the slider to the desired amount of time, such as All, 12 months, 6 months, 3 months, or 1 month.Note: If you're using Outlook 2016, you can also select an amount of time as short as 3 days.. For example, if you move the slider to 3 months, only mail from the past three months will be synchronized to your Offline Outlook Data (.ost) file from the Exchange server. In Outlook 2016, click Account Settings, on the File tab, 1 = Mail to keep offline setting does not affect shared mailboxes and public folder favorites . What we have tried to resolve the issue: 1. Software Installed-----Windows 10 64 bit. The only solution I have found is to disable caching of the shared mailbox. We have re-installed Outlook 2016. Tested step 1-2 on another machine with the Software Installed and still had the same issue. The Download shared folders and Download Public Folder Favorites settings are enabled. @uwm. 2. Starting in Outlook 2016, the Mail to keep offline setting applies to your own mailbox, shared mailboxes, and public folder favorites if the following conditions are true:. Re-created the Mail Profile in Control Panel > Mail (Microsoft Outlook 2016) (32-bit) 3. The Download shared folders and Download Public Folder Favorites settings are enabled. Warning: These messages are not easily recoverable.