Unable to search shared mailboxes from main mail account

Chris Helms 20

Migrated two Exchange accounts over to a shared mailbox, since then the user has not been able to search from their main inbox search bar for email that is in one of the two shared mailboxes. We have tried changing the search folders to all the options to no avail. If you click on the shared mailbox and search, it will work but this is time consuming especially if you don't know which mailbox to search. What else needs to happen to make these shared mailboxes searchable from the main mail account search?

1 answer

Jake Zhang-MSFT 5,670 Reputation points Microsoft Vendor

2024-04-24T10:50:48.6733333+00:00

Hi @Chris Helms,

According to your description, I tested it in my environment. If the shared mailbox is added via automapping, the records can only be searched by clicking on shared mailbox and selecting "current folder"; and if we use “All mailboxes” no result are returned. This is a design limit.

To work around this issue, you can add the Shared Mailbox as a secondary Exchange account to the profile. First you will need to check if the shared mailbox is already listed as an account in the profile. If so, you will have to remove it. You could refer to Troubleshooting Outlook search issues - Microsoft Support for more information.
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Chris Helms 20 Reputation points

2024-04-26T14:51:31.9766667+00:00

Jake, thanks for the information. I tried to add the accounts (there are two) as a work around and one added successfully but the other will not add and keeps giving me a sign on error:

Error Code: 50058

Request Id: 0f28dd50-14e0-41b6-9a70-dd185b88ce00

Correlation Id: a9996544-c996-4c00-88aa-0cfd26c8587d

Timestamp: 2024-04-25T20:04:38.871Z

It will not allow me to change the email address to the full access delegated account.

I tried clearing the stored credentials and that did not work. Any suggestions for that?

Chris Helms 20 Reputation points

2024-04-26T15:36:10.42+00:00

Could it be a profile issue since the user had this as an Exchange account prior to the migration from Exchange to shared mailbox?

Jake Zhang-MSFT 5,670 Reputation points Microsoft Vendor

2024-04-30T08:21:00.66+00:00

Hello @Chris Helms,

I would like to confirm with you first, whether the search function can be used normally for accounts that have been successfully added?

Please understand that our forum is a one-question-one-post principle. For the issue : unable to add shared mailbox account , it is recommended that you create a new post , then an engineer will be assigned to help you to fix the issue. Thank you for your understanding!

Chris Helms 20 Reputation points

2024-04-30T13:46:10.8366667+00:00

Yes, the account that was successfully added, searches correctly. I have posted a new question to address the other account not wanting to be added.

Jake Zhang-MSFT 5,670 Reputation points Microsoft Vendor

2024-05-06T01:50:16.9033333+00:00

Hi @Chris Helms, I'm glad to know that the issue has been resolved, please mark a useful reply as an answer, it will make the search for answers in the forum easier and also beneficial to other community members. In the meantime, I hope that your new question will be resolved as soon as possible.
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Unable to search shared mailboxes from main mail account

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