Merge pull request #3739 from MithunRathinam/patch-26

Update anti-phishing-policies-mdo-configure.md

Author: chrisda

defender-office-365/anti-phishing-policies-mdo-configure.md

@@ -321,7 +321,7 @@ For anti-phishing policy procedures in organizations without Defender for Office
      - **Show user impersonation safety tip**: This setting is available only if you selected **Enable users to protect** on the previous page.
      - **Show domain impersonation safety tip**: This setting is available only if you selected **Enable domains to protect** on the previous page.
      - **Show user impersonation unusual characters safety tip** This setting is available only if you selected **Enable users to protect** or **Enable domains to protect** on the previous page.
-     - **Show (?) for unauthenticated senders for spoof**: This setting is available only if you selected **Enable spoof intelligence** on the previous page. Adds a question mark (?) to the sender's photo in the From box in Outlook if the message doesn't pass SPF or DKIM checks **and** the message doesn't pass DMARC or [composite authentication](email-authentication-about.md#composite-authentication). This setting is selected by default.
+     - **Show (?) for unauthenticated senders for spoof**: This setting is available only if you selected **Enable spoof intelligence** on the previous page. Adds a question mark (?) to the sender's photo in the From box in Outlook if the message doesn't pass [Sender Policy Framework (SPF)](email-authentication-spf-configure.md) or [DomainKeys Identified Mail (DKIM)](email-authentication-dkim-configure.md) checks **and** the message doesn't pass [Domain-based Message Authentication, Reporting and Conformance (DMARC)](email-authentication-dmarc-configure.md) or [composite authentication](email-authentication-about.md#composite-authentication). This setting is selected by default.
      - **Show "via" tag**: This setting is available only if you selected **Enable spoof intelligence** on the previous page. Adds tag named via (`[email protected] via fabrikam.com`) to the From address if it's different from the domain in the DKIM signature or the **MAIL FROM** address. This setting is selected by default.
 
      To turn on a setting, select the check box. To turn it off, clear the check box.