Outlook 2016 additional mailbox not updating
This also affected the ability to search public folders: because the items weren't cached, Outlook wasn't indexing the folder contents.
Search only worked if you unchecked the Download shared folders option which switched the folders to online mode, where items were indexed by the server.
The Outlook is designed to archive Inbox emails to reduce the mailbox size.
Office 365 account has read and manage (plus send email from and on behalf) permissions to another mailbox.
I've setup the office 365 account in outlook 2016 using autodiscover which all works ok.
We looked at how to add a mailbox in previous versions of Outlook; be sure to check out our articles for Outlook 2010 and Outlook 2013 if you are running those versions.
In this article, we will see how you can setup additional mailboxes in the latest version Outlook 2016. To add another mailbox, launch Microsoft Outlook 2016 then click the .2.