Consolidate invalid submissions

Author: Maddy-Cloudflare

src/content/docs/cloudflare-one/email-security/reclassifications/invalid-submissions.mdx

@@ -26,3 +26,11 @@ To view invalid submissions:
 You can search by submission ID or submitted email.
 
 You can filter based on **Date Range** and **Submitted by** (which will list emails that made the invalid submissions). Once you have configured your desired filters, select **Apply filters**.
+
+## Enable notifications
+
+To enable Invalid submission email notifications:
+
+1. Log in to [Cloudflare One](https://one.dash.cloudflare.com/).
+2. Select **Email security** > **Settings**.
+3. Go to **Invalid submission emails** and turn on **Invalid submission email notifications**.