Jun 4, 2019
Lifting the 500 Folder Limit in Outlook
Feature deep diveThe limit of 500 shared folders has been a longstanding product limitation in Outlook since the dawn of cached mode (2003!) For those with access to mailboxes containing more than 500 folders, sync would “randomly” fail resulting in an inconsistent sync for both the customer’s own mailbox, as well as the other mailboxes they had access to.