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...
Found a working workaround
1_Disable Shared Mailbox Caching
2_Open Outlook and verify shared folder works online
3_Enable Shared Mailbox Caching
4_Open Outlook in Safe Mode (outlook.exe /safe)
5_Pres Shift-F9 on shared mailbox and wait until mailbox completely synchronize. Now verify new mails arrives and showed automatically.
6_Close Outlook (safe mode) and re-open normally, recheck outlook shows new upcoming emails normally.
1_Disable Shared Mailbox Caching
2_Open Outlook and verify shared folder works online
3_Enable Shared Mailbox Caching
4_Open Outlook in Safe Mode (outlook.exe /safe)
5_Pres Shift-F9 on shared mailbox and wait until mailbox completely synchronize. Now verify new mails arrives and showed automatically.
6_Close Outlook (safe mode) and re-open normally, recheck outlook shows new upcoming emails normally.
Interesting. This seems to confirm that the problem is with the cache itself and rebuilding resolves it. I would think the risk of a repeat offense is high. So please do reply again if you find the problem returns after using that workaround.
JeremyTBradshaw we can confirm that this fix either doesn't stick for more than maybe a day or simply doesn't work at all. Everything from toggling all of the cached mode settings to making a new profile to online repairs to full reinstallation of Office has not been effective in solving this. It is only affecting users that have delegated access to user mailboxes in our experience so far.
- Many people have, it's earlier in the thread. The problem returns intermittently. I've been monitoring the Sync Issues folder in Folder View more often now and get two a day after the "fix" above.
