Email not showing in shared mailbox

Kareem Culbertson 120 Reputation points
2025-12-15T23:36:53.25+00:00

Hello,

I am apart of a shared mailbox and I am expecting to receive two factor authentication codes. I can confirm via the 365 admin center that the emails are delivered successfully. However, I am unable to see in either the desktop or Web version of Outlook. Is there a reason for this?

I am able to receive other emails normally.

Thank you,

Kareem

Microsoft 365 and Office | Other

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3 answers

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  1. Kimberly Olaño 23,615 Reputation points
    2025-12-16T21:23:56.8033333+00:00

    I see. Try this:

    In Outlook Web → search the shared mailbox for:

    • verification
    • code
    • security
    • login

    Expand “Search all folders”

    If found → note the folder → create a rule to move them to Inbox.

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  2. Kimberly Olaño 23,615 Reputation points
    2025-12-16T01:33:16.79+00:00

    Thanks for sharing the details, Kareem! Try to check for Hidden Inbox Rules on the Shared Mailbox

    2FA systems often trigger auto-created or legacy rules that do not show in Outlook.

    Go to Outlook on the Web

    Open the shared mailbox directly

    Go to Settings → Mail → Rules

    Look for rules that:

    • Move mail to RSS / Junk / Archive
    • Delete messages
    • Forward messages externally

    Even if you didn’t create rules, apps and previous admins often did.

    Disable or delete any rule affecting those messages.

    See if this helps. If you need further assistance just let me know.

    Best regards,

    Kimberly

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  3. AI answer

    2025-12-15T23:37:00.59+00:00

    In Microsoft Outlook, if you are not seeing certain emails in a shared mailbox, it could be due to the sensitivity settings of those emails. Specifically, if the emails are marked as "Private," they will not be displayed in the shared mailbox's Inbox. This behavior is by design, and only the sender can set the sensitivity level of the item.

    To resolve this issue, you can try the following workarounds:

    1. Use Outlook on the Web (OWA) to check if the emails appear there.
    2. Ensure that you have been added as a delegate to the shared mailbox with permission to view private items. This can be done via PowerShell or Outlook settings.
    3. Alternatively, add the shared mailbox as an additional account using the email address and password of a user who has permission for that mailbox, ensuring that automapping is removed.

    If the two-factor authentication emails are marked as private, you will need to follow these steps to access them.

    References:

    AI-generated content may be incorrect. Read our transparency notes for more information.

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