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0365 Outlook Signature
Applies to
In Microsoft 365 organizations with mailboxes in Exchange Online or on-premises mailboxes using hybrid modern authentication, you can submit false positives (good email marked as spam), false negatives (bad email allowed), and phishing messages to Exchange Online Protection (EOP).
What do you need to know before you begin?
For the best user submission experience we recommend using the Report Message and the Report Phishing add-ins. See Enable the Report Message add-in and Enable the Report Phishing add-in for more information.
If you're an admin in an organization with Exchange Online mailboxes, we recommend that you use the Submissions portal in the Security & Compliance Center. For more information, see Use Admin Submission to submit suspected spam, phish, URLs, and files to Microsoft.
Admins can disable or enable the ability for users to report messages to Microsoft in Outlook on the web. For details, see the Disable or enable junk email reporting in Outlook on the web section later in this article.
You can configure reported messages to be copied or redirected to a mailbox that you specify. For more information, see User submissions policies.
For more information about reporting messages to Microsoft, see Report messages and files to Microsoft.
Disable or enable junk email reporting in Outlook on the web
By default, users can report spam false positives, false negatives, and phishing messages to Microsoft for analysis in Outlook on the web. Admins can configure Outlook on the web mailbox policies in Exchange Online PowerShell to prevent users from reporting spam false positives and spam false negatives to Microsoft. You can't disable the ability for users to report phishing messages to Microsoft.
What do you need to know before you begin?
To connect to Exchange Online PowerShell, see Connect to Exchange Online PowerShell.
You need to be assigned permissions in Exchange Online before you can do the procedures in this article. Specifically you need the Recipient Policies or Mail Recipients roles, which are assigned to the Organization Management and Recipient Management role groups by default. For more information about role groups in Exchange Online, see Permissions in Exchange Online and Modify role groups in Exchange Online.
Every organization has a default policy named OwaMailboxPolicy-Default, but you can create custom policies. Custom policies are applied to scoped users before the default policy. For more information about Outlook on the web mailbox policies, see Outlook on the web mailbox policies in Exchange Online.
Disabling junk email reporting doesn't remove the ability to mark a message as junk or not junk in Outlook on the web. Selecting a message in the Junk email folder and clicking Not junk > Not junk still moves the message back into the Inbox. Selecting a message in any other email folder and clicking Junk > Junk still moves the message into the Junk Email folder. What's no longer available is the option to report the message to Microsoft.
Use Exchange Online PowerShell to disable or enable junk email reporting in Outlook on the web
To find your existing Outlook on the web mailbox policies and the status of junk email reporting, run the following command:
To disable or enable junk email reporting in Outlook on the web, use the following syntax:
This example disables junk email reporting in the default policy.
This example enables junk email reporting in the custom policy named Contoso Managers.
For detailed syntax and parameter information, see Get-OwaMailboxPolicy and Set-OwaMailboxPolicy.
How do you know this worked?
To verify that you've successfully enabled or disabled junk email reporting in Outlook on the web, use any of the following steps:
In Exchange Online PowerShell, run the following command and verify the ReportJunkEmailEnabled property value:
Open an affected user's mailbox in Outlook on the web, select a message in the Inbox, click Junk > Junk and verify the prompt to report the message to Microsoft is or is not displayed.*
Open an affected user's mailbox in Outlook on the web, select a message in the Junk Email folder, click Junk > Junk and verify the prompt to report the message to Microsoft is or is not displayed.*
* Users can hide the prompt to report the message while still reporting the message. To check this setting in Outlook on the web:
365 Outlook Mail Login
Click Settings > View all Outlook settings > Junk email.
In the Reporting section, verify the value: Ask me before sending a report.