282 votesDan commented
Update from Microsoft now states that this is being rolled out and will be released in Q32019:
Outlook for Windows: Lift 500 folder limit for shared mailboxes
Outlook has improved synchronization of folders by removing the 500 folder limit for shared mailboxes.
Featured ID: 27807
Added to Roadmap: 5/24/2018
Last Modified: 2/27/2019
Tags: Windows Desktop