Fix Shared Mailbox Not Receiving SharePoint Emails from Power Automate
Question details
A shared mailbox is failing to receive SharePoint notification emails triggered by a Power Automate flow, while personal mailboxes continue to receive them normally.

- Product
- Microsoft Power Automate
- Device & OS
- not provided
- Scenario
- Using a Power Automate flow to send automated SharePoint notifications to a shared mailbox in Microsoft Outlook.
- Observed behavior
- The flow executes properly for personal mailboxes, but the emails do not arrive in the shared mailbox, despite the shared mailbox functioning correctly for other incoming emails.
Verify that the shared mailbox has sufficient storage quota and check its Junk Email or Deleted Items folders to ensure the SharePoint emails aren't being automatically filtered out.
Verify Flow Configuration and Shared Mailbox Permissions
Check the run history in Power Automate and ensure the account running the flow has the correct Exchange permissions to send to or access the shared mailbox.
Often, a flow might show as successful in Power Automate, but the email gets dropped at the Exchange level due to permission misconfigurations or inbox rules specific to the shared mailbox.
Open Power Automate, navigate to 'My flows', click on your specific SharePoint notification flow, and review the 28-day Run History. Expand the 'Send an email' action to check for hidden delivery errors.
Contact your IT administrator to confirm that the account authenticating the Power Automate flow has 'Send As' or 'Read and Manage' permissions for the shared mailbox in the Exchange Admin Center.
Log into the shared mailbox using Outlook on the Web (OWA). Go to Settings > Mail > Rules and disable any rules that might be forwarding or deleting emails originating from SharePoint or Power Apps.

Request Assistance from the Power Automate Community
If basic troubleshooting does not resolve the issue, consult the Microsoft Power Automate Community for expert assistance regarding backend flow bugs.
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Frequently Asked Questions
Why do personal mailboxes receive the Power Automate emails but the shared mailbox doesn't?
This usually happens due to permission mismatches with the shared mailbox, strict spam filters applied specifically to shared accounts at the Exchange level, or custom Inbox rules that move the automated emails to a hidden folder.
How do I check if my Power Automate email action actually triggered?
Go to your Power Automate dashboard, click on 'My flows', select the flow in question, and view the run history. Click on a specific run to see if the 'Send an email' action shows a green checkmark indicating the request successfully left Power Automate.
Can anti-spam policies block Power Automate emails to shared mailboxes?
Yes, Microsoft Defender for Office 365 or your organization's anti-spam policies might flag bulk automated emails from SharePoint as spam, routing them to the Junk folder or quarantining them before they reach the shared mailbox inbox.




