[Email Security] Add recommended course of action (#25955)

Author: Maddy-Cloudflare

src/content/docs/cloudflare-one/email-security/retro-scan.mdx

@@ -5,7 +5,7 @@ sidebar:
   order: 10
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-Retro Scan allows you to scan up to 14 days of old messages in your Microsoft 365 inboxes and check if your current email security solution missed any threats. 
+Retro Scan allows you to scan up to 14 days of old messages in your Microsoft 365 inboxes and check if your current email security solution missed any threats. Once you receive your Retro Scan report, you will be able to remediate malicious messages.
 
 :::note
 Retro Scan is only available for Microsoft 365 accounts.