URL: This article is intended to assist users in solving database corruption cases in Outlook 2011/Outlook 2016 for Mac when connected to an Exchange mailbox. Sometimes Mac users report that Outlook 2011 /Outlook 2016 for Mac is not syncing properly (or syncing quite slowly, freezing frequently) with Exchange.

The problem usually is not a connectivity issue between the mail client and the mail server, but rather a local Outlook database corruption. Keep your mail sorted into folders In many cases, Outlook does work properly with folders as large as 10.000 items and more, but decreasing the folder size can improve the performance drastically, and generally this is the first troubleshooting step to be done in a case of slow/freezing Outlook client. You can move the items using client.

Read the following Microsoft Office articles for more information:. Keep the number of subfolders in Inbox and Sent Items to minimum Instead, it is preferable to create new folders on top level. The same level as Inbox and Sent Items are for better performance. Move folders and multiple items in OWA Moving big folders or a lot of items at once in desktop Outlook client takes significant time to synchronize with the server. Moving a lot of items can often cause disruption in the mailbox if the connection fails for a moment, for example, due to high network usage or your computer’s CPU load. On the other hand, changes made in occur directly on the server and thus happen instantaneously.

Email Management Using Outlook For Mac 2017

Clear affected folder's cache in case of content mismatch If you see that Outlook 2011/Outlook 2016 for Mac and folders don't match, you may want to reload the cache to fix the issue. Read the Knowledge Base for more information. Re-create the Microsoft Office Identity If the Outlook 2011 client becomes slow and unresponsive, or stops syncing completely, while Outlook Web App and/or other clients work fine, it is most likely an indicator of corrupted Outlook database. In this case, it is recommended to rebuild, or remove, and re-create the Microsoft Office identity or Outlook Profile on Outlook 2016 for Mac. If you do not have any other mailboxes in your Outlook profile, we recommend removing and re-creating the identity.

Email Management Using Outlook For Mac 2016

Please read the following articles and for more information.