Exchange Server 2016 - Minimum Software Versions Supported
Unsupported Outlook Client Versions
Outlook 2003 is no longer supported in any way.
Outlook 2007 is no longer supported in any way.
Entourage 2004 for Mac is no longer supported in any way.
Entourage 2008 for Mac is no longer supported in any way.
Supported Outlook Client Versions
While there is some backwards compatibility with other older versions of Outlook, there are tight restrictions on what will and won't work correctly with Exchange 2016.
Outlook 2010 with KB2965295 is supported. Older versions of Outlook 2010 that has not been updated to this level are not supported. The update is HERE
Outlook 2011 for Mac is fully supported.
Outlook for Mac for Office 365 is fully supported.
Outlook 2013 is fully supported.
Outlook 2016 is fully supported.
Outlook Connection Issues
Microsoft have made some recent changes to the latest Outlook builds, especially...
Error Message -- Quota Exceeded
If you receive a "mailbox quota exceeded" message when trying to create a new mailbox...
Outlook Search Issues
It appears that Microsoft have made some recent changes to the latest Outlook...
Searching Your Mailbox's Delivery Logs
How-to Steps Log into your mailbox via OWA (Outlook Web App) Use either...
Outlook 2013 - Finding your Mailbox-Specific Server Name
From Exchange 2013 onward, each mailbox has its own GUID-based server name, and no longer...