changing the owner of shared mailbox

Ran Choi 6 Reputation points
2022-07-05T08:19:46.303+00:00

Previous owner of shared mailbox resigned last year without changing the ownership to another employee.
Owing to this absence of the owner for this mailbox, access permission cannot be granted to new employees who really need urgent.
Any ideas how we can reset (or switch) the ownership to new person without having the original owner?

Outlook Management
Outlook Management
Outlook: A family of Microsoft email and calendar products.Management: The act or process of organizing, handling, directing or controlling something.
5,492 questions
0 comments No comments
{count} vote

2 answers

Sort by: Most helpful
  1. Robert Sparnaaij [MVP] 1,816 Reputation points MVP
    2022-07-05T08:53:13.197+00:00

    Ownership of a mailbox isn't something that is controlled by the actual owner of the mailbox but by the Exchange administrator via Full Access permissions.
    You can find details on how to set that here; Manage permissions for recipients in Exchange Online

    1 person found this answer helpful.
    0 comments No comments

  2. Faery Fu-MSFT 19,021 Reputation points Microsoft Vendor
    2022-07-06T03:18:17.873+00:00

    Hi @Ran Choi ,
    Administrator can grant Send on Behalf permissions for a standard user mailbox via the https://portal.office.com/adminportal/home#/homepage,
    In the admin center, go to the Teams & Groups > Shared mailboxes page.
    217992-capture1.png
    Click on the shared mailbox and click edit to add members to this mailbox.
    217918-capture2.png


    If the answer is helpful, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment".
    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.


Your answer

Answers can be marked as Accepted Answers by the question author, which helps users to know the answer solved the author's problem.