Forum Discussion

jakub1's avatar
jakub1
Copper Contributor
Jul 06, 2026

New Outlook missing sended message

In new outlook (in browser and also in desktop app) is missing mail message which was sended at 11:34, 7.6.2026. I see this message only in Message Tracing in Exchange, but in outlook nothing, is mis...
RobertSparnaaij's avatar
RobertSparnaaij
MVP
Jul 06, 2026

Checked the Deleted Items folder and the Recovery folder of the Deleted Items folder already?

In case this mailbox has granted someone Send As or Send on Behalf Of permissions without setting the option to create a copy in the Owner mailbox, then the sent message will only show up in the Sent Items folder of the actual sender.

If you have this level of auditing enabled within your tenant, querying the Audit Log can also reveal what happened to the message.

jakubv1's avatar
jakubv1
Copper Contributor
Jul 07, 2026

Message is not finded in Deleted items folder. Its private mailbox, there is not possible to Send As Behalf.

  • RobertSparnaaij's avatar
    RobertSparnaaij
    MVP
    Jul 10, 2026

    If the audit log doesn't reveal anything either, you can open a Support Case with Microsoft via the Microsoft 365 Admin Portal in the section Support-> Help & support.

    You can also open the support panel via the headset icon in the bottom right corner.

    You can track you service requests here;

    https://admin.cloud.microsoft/?#/support/requests