Outlook - Unable to see new emails in Shared mailbox

Question

I was recently migrated to O365, I have a shared mailbox (still on prem) mapped to my outlook, but Im not able to see the new emails coming in

Please advice.

Answer 1

Hi Andy, Thank you for the reply.

I've tried that already, So Once I Uncheck the download shared folder and restart outlook and try to access the Shared Mailbox get an error message stating cannot expand folder.

On Webmail the Shared Mailbox opens and work fine (no sync issues I'm able to see all emails)

The Unchecking download shared folder option has worked for me in the past in fixing Sync issues with Shared mailbox. This is the first time I see this error.

Answer 2

A couple of things to try if you havent already:

New Outlook Profile
Remove Full Access and Re-add
Move the shared mailbox to Office 365. I prefer this one as I am not a big fan of sharing across a hybrid environment even though its supported.

Answer 3

Hi Andy, Moving the Shared Mailbox to Office 365 worked (New Profile, remove and readd access also works but it is for a short duration the issue reappears again)

Strange thing here is I notice this issue occuring with only one particular Shared Mailbox, there are many accounts migrated to O365 and have shared mailbox (on-prem) mapped to them. Do not see all the accounts facing the same issue (except this one)

Anyways as suggested, the shared mailbox is now moved to Office 365 and everything works fine.

Thank you for your inputs :)

Answer 4

@MK

It's great that your issue is solved and thanks for your sharing. You can accept the useful reply, and this may help other people with similar issues.
Based on your description that this issue only occurs with the particular shared mailbox, something may be corrupted for this shared mailbox and migrating to O365 does fix this issue.

---

If the response is helpful, please click "Accept Answer" and upvote it.
Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.

Answer 5

I tried it and fixed issue thanks