Microsoft Outlook for Mac 2011 “Not Responding” after upgrade to Mac OS X 10.11 El Capitan. Ask Question. Shortly after you start Microsoft Outlook for Mac 2011 on Mac OS X El Capitan (version 10.11), Outlook hangs when it tries to sync with the server. Microsoft Outlook 2011 constantly crashing. If the problem still occurs, quit Microsoft Word, and restore the file to its original location. Then, go to the next step. If the problem seems to be resolved, you can move the com.microsoft.Word.plist file to the trash. Quit all Microsoft Office for Mac programs. On the Go menu, click Home. Open Library.

Microsoft today released an update for Microsoft Office for Mac 2011, which fixes a significant Outlook bug that Office users ran into after upgrading to OS X El Capitan. After installing the new Apple operating system, many Outlook 2011 users found themselves unable to access their mail due to a syncing issue that caused the app to hang whenever it attempted to access the server.

Users were seeing a spinning Wait cursor whenever a sync was attempted and Outlook would become unresponsive, making it impossible to fetch new emails. The new 14.5.6 update should fix this problem for Outlook users who have installed OS X El Capitan and is a much better fix than Microsoft's previous workaround, which simply suggested users run OS X Yosemite.

Though Microsoft has fixed one major bug OS X El Capitan users are running into, there are still problems with Office 2016. Word, Excel, Outlook, and PowerPoint 2016 are crashing for many users, preventing them from being used with OS X El Capitan.

Microsoft Word 2011 Crashing On Mac Sierra 10

Microsoft has said that it is working on a fix for Office 2016, but it has not given a timeline for when users can expect the issues to be solved.