[Email Security] Clarify auto-move for MS Exchange customers (cloudflare#25558)

Author: Maddy-Cloudflare

src/content/docs/cloudflare-one/email-security/setup/post-delivery-deployment/bcc-journaling/bcc-setup/bcc-microsoft-exchange.mdx

@@ -15,6 +15,10 @@ For customers using Microsoft Exchange, setting up Email Security via BCC is qui
 
 ![Email flow when setting up a phishing assessment risk for Microsoft Exchange with Email Security.](~/assets/images/email-security/deployment/api-setup/exchange/bcc-exchange-flow.png)
 
+:::note[Auto-moves for Microsoft Exchange customers]
+Microsoft Exchange customers can auto-move if your email service is on-premise and you are using Microsoft Exchange online.
+:::
+
 ## Configure Inbound Rule
 
 1. Access Exchange's **Management Console**, and go to **Organization Configuration** > **Hub Transport**.
@@ -76,4 +80,4 @@ In BCC mode, all emails are put through automated phishing detections by Email S
 
 ## Next steps
 
-<Render file="email-security/enable-logs" product="cloudflare-one" />
+<Render file="email-security/enable-logs" product="cloudflare-one" />