Forum Discussion
Shared Mailboxes or Calendars not updating since mid Jan 2022 unless disable Shared Mailbox Caching
Hello. We're an MSP and since around 17th/18th Jan we've had one or two users in 7 different companies (tenants) report issues with shared mailboxes or shared calendars they have access to not upda...
Exactly the same problem here, seems to be getting worse and spreads out through my organization
I managed to fix the problem by manually going to the few people who had the issue, removed the "Download shared folders" tick under Advanced in Account management, close Outlook and open it up again. Then going back intro the same settings and switch it back on again. This will start a sync of the Shared mailbox back to the OST file and update automatically again. Hope this helps until we know why this started happening.
- EmileSteenkamp This was my workaround when I posted the question but you have made in clear for anyone who comes here.
As of 19/1 (but I did not see visibility of this till 22/1) it looks like this has now appeared in the public domain as an M365 issue. So we await a Microsoft fix with another suggested workaround below:
January 21, 2022 11:16 PM
Title: A small percentage of users' shared mailboxes aren't automatically refreshing new email in the Outlook desktop client
User Impact: Users' shared mailboxes aren't automatically refreshing for new email in the Outlook desktop client.
More info: While we're focused on remediation, users that have access to Outlook on the web can use this connection method to bypass this problem. Some affected users have reported that manually refreshing their folders using key shortcuts, such as pressing F9 or CTRL + M, may result in intermittent success as well.
Current status: We're continuing to review Fiddler trace logs and are in the process of gathering additional Time Travel Debugging (TTD) traces from our internal reproduction of the issue to provide insight into the cause of this problem and identify possible mitigation options.
Scope of impact: A small percentage of users aren’t seeing their shared mailboxes automatically refresh.- gblackburn, Yes I've found that by only unticking the "Download Shared folder" it worked, but users were complaining about very slow response, so by ticking it again, it started to work. If you select the Inbox of the shared folder and click on "Update folder" that also works, but who wants to do that 100 times a day.
