Apply suggestions from code review

Co-authored-by: Néda <[email protected]>

Author: RoRoJ

changelog/july2025/2025-07-08-transactional-email-added-ipv6-support-enabled-on-smtp-.mdx

@@ -1,12 +1,10 @@
 ---
-title: IPv6 Support Enabled on SMTP Proxy
+title: IPv6 support enabled on SMTP proxy
 status: added
 date: 2025-07-08
 category: domains-and-webhosting
 product: transactional-email
 ---
 
-IPv6 is now activated on the SMTP proxy for our TEM service.
-No action is required on your side. IPv6 is used automatically when available, using the same hostname:
-smtp.tem.scaleway.com
-
+IPv6 is now enabled on the SMTP proxy for our TEM service.
+No action is required on your side, as the system will automatically use IPv6 when available, without changing the `smtp.tem.scaleway.com` hostname.