Regular Mailbox permissions

Rising Flight 3,731 Reputation points
2020-10-12T07:02:43.36+00:00

Hi All

I am using exchange hybrid environment, all my users are on exchange online, i have a regular mailbox lets say common@Company portal .com and one of my user user1@Company portal .com has Send As, Full Access to this regular mailbox.

When user1 composes new email and he selects from address as common@Company portal .com, in the sent items the user sees the sent email in his inbox rather than
common@Company portal .com. my requirement is when user select from address as common@Company portal .com and sends email, the sent email should be in common@Company portal .com not in user1@Company portal .com sent items. experts guide me on this.

Microsoft Exchange Online Management
Microsoft Exchange Online Management
Microsoft Exchange Online: A Microsoft email and calendaring hosted service.Management: The act or process of organizing, handling, directing or controlling something.
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Exchange Server Management
Exchange Server Management
Exchange Server: A family of Microsoft client/server messaging and collaboration software.Management: The act or process of organizing, handling, directing or controlling something.
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Accepted answer
  1. Eric Yin-MSFT 4,386 Reputation points
    2020-10-13T01:57:10.48+00:00

    I've made some research into this question. There are three methods that affect the final location of sent message:
    Method1:
    An option in Outlook settings:
    31820-1.png

    Method2:
    Powershell command:

    Set-Mailbox -Identity "SharedMB“ –MessageCopyForSendOnBehalfEnabled $true

    Method3:
    Add Dword in regestry as AshokM posts, here is official doc.

    When you apply one or multiple methods on your server/PC, results will be (shared MB means common@Company portal .com for you ):
    (I was testing in on-premise Exchange server)
    31872-3.png

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  1. Ashok M 6,506 Reputation points
    2020-10-12T07:27:29.897+00:00

    Hi,

    Please set the Message Copy in regular mailbox using the below command,

    set-mailbox common@Company portal .com -MessageCopyForSentAsEnabled $True

    https://techcommunity.microsoft.com/t5/exchange-team-blog/want-more-control-over-sent-items-when-using-shared-mailboxes/ba-p/611106

    You can also use the registry key to achieve this,

    1. Click Start, click Run, type regedit, and then click OK.
    2. Locate and then click the following registry subkey:

    HKEY_CURRENT_USER\Software\Microsoft\Office\x.0\Outlook\Preferences

    Note: The x.0 placeholder represents your version of Office (16.0 = Office 2016, 15.0 = Office 2013, 14.0 = Office 2010).

    1. On the Edit menu, point to New, and then click DWORD Value.
    2. Type DelegateSentItemsStyle, and then press Enter.
    3. Right-click DelegateSentItemsStyle, and then click Modify.
    4. In the Value data box, type 1, and then click OK.
    5. Exit Registry Editor.

    Please Note: Copy can be saved to the sent items in shared mailbox but it cannot be removed from the original sender's sent items. Also, export the registry key before making changes.