


This issue can be fixed by making changes to the registry. Known issue: sometimes Outlook 2016 takes too long to discover the mailbox settings.Known issue: if you're experiencing issues connecting to Resource Mailboxes after upgrading your existing profile to Outlook 2016, delete the.If you're getting an activation error 0x8007007B, close Outlook and all other Office applications and use the Repair option under Control Panel > Programs and Features > your Office / Outlook installation > Change.Only Exchange 2010 and later versions are supported. Outlook 2016 does not support Exchange 2007 mailboxes.

