[Email Security] Update redirect

Author: Maddy-Cloudflare

src/content/docs/cloudflare-one/email-security/index.mdx

@@ -7,6 +7,10 @@ sidebar:
 
 import { Description } from "~/components"
 
+:::caution[Important]
+Refer to [Area 1](/email-security/) if you are looking for the Area 1 documentation.
+:::
+
 <Description>
 Secure your email inbox with API-first Email Security.
 </Description>

src/content/products/email-security.yaml

@@ -1,8 +1,8 @@
-name: Email Security (formerly Area 1)
+name: Email Security
 
 product:
-  title: Email Security (formerly Area 1)
-  url: /email-security/
+  title: Email Security 
+  url: /cloudflare-one/email-security/
   group: Cloudflare One
 
 meta:
@@ -17,3 +17,4 @@ resources:
 externals:
   - title: Cloudflare Email Security (formerly Area 1)
     url: https://www.cloudflare.com/products/zero-trust/email-security/
+