I was addressing an interesting issue for a customer today where a user with a shared mailbox would not automatically update.Their primary mailbox updated correctly, only the shared mailbox did not update.This issue has been reported in organizations with Microsoft Exchange, Outlook (2010, 2013 or 2016), Apple i Phones/i Pads, Active Sync devices, Apple Macs running Outlook 2011 or 2016, and RIM Blackberries.For more information see: Exchange Outlook Calendaring Problems.Exchange itself is usually not the root of the problem, the mail clients (Active Sync, i OS devices, Blackberries, i Cal) and their connectivity protocol tend to be the culprits. For instance, if someone accepts a meeting at 9am on an i Phone and a delegate declines it at am on a PC, but the i Phone is out of signal range and doesn't sync the meeting until say am., what happens to the meeting?If you have exported your Studio Cloud calendar to Outlook (see Export your Studio Cloud Calendar to Outlook 2007), you may want to change the refresh or update rate of the calendar.
And you don't need to have the third eye to understand at least one reason why they discontinued it.
This shared mailbox having the issue was indeed over 2GB in size.
There are numerous forum threads on the Internet with people experiencing this Outlook issue: This issue only occurs when shared mailboxes are being cached locally.
All other shared mailboxes for other users worked correctly.
All users are running Outlook 2013 32bit with all latest patches at the time of this writing.