[Email Security] Add note about PhishGuard user submissions

Author: Maddy-Cloudflare

src/content/docs/cloudflare-one/email-security/email-monitoring/search-email.mdx

@@ -135,6 +135,10 @@ To gain more details on a specific reclassification:
 
 User submissions are the emails your users submitted for reclassification. User submissions help enhance our detection model, but can be escalated for human review.
 
+:::note
+[PhishGuard](/cloudflare-one/email-security/phish-guard/) customers can have submissions analyzed when submitting at either user to team level. Any non PhishGuard customer can still have submissions analyzed by submitting at team level.
+:::
+
 Select among the following filters:
 
 - **Date Range**: Select a date range from the last 7, last 30, and last 90 days.