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Shared Mailbox - Block sending emails from Shared Mailbox

Jovana Radovanovic 20 Reputation points
2024-05-14T11:50:31.5566667+00:00

Hello,

I've created a shared mailbox for 44 people to serve as a shared calendar, however, it is confusing for them, because sometimes they send meeting invites from the shared calendar and not from their email to clients.

Is it possible to block sending meeting invitations and emails from the shared mailbox?

Shared mailbox is already set like in the attached picture.

Thank you in advance.

Microsoft 365
Microsoft 365
Formerly Office 365, is a line of subscription services offered by Microsoft which adds to and includes the Microsoft Office product line.
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Outlook
Outlook
A family of Microsoft email and calendar products.
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  1. Vasil Michev 97,306 Reputation points MVP
    2024-05-14T16:04:41.96+00:00

    There is no picture attached, try reuploading it. As for the question, sending emails from shared mailboxes requires permissions, no user will be able to do so unless you (or another admin) explicitly granted them Send As or Send on behalf of permissions. Remove those, and you should be OK.

    1 person found this answer helpful.

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  1. ChristyZhang-MSFT 21,261 Reputation points Microsoft Vendor
    2024-05-15T05:57:37.15+00:00

    Hi @Jovana Radovanovic ,

    Welcome to our forum!

    Agree with Vasil Michev, if you don't allow users who have permission to access the shared mailbox to send emails from shared mailbox, you can change the user's permission to Full Access. User's image

    If you don't want to change the permission for users but only want to change something on user's side, it's suggested that you could contact the users to set their own account as default account in Outlook desktop client and enable Always use the default account when composing new messages option. More information: Change the account used to send email messages.

    Hope to help you!

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