Postfix: SMTP smuggling, remote crash, and hardening fixes in 3.11.7 and related legacy releases
Postfix 3.11.7 and legacy releases 3.10.14 and 3.9.15 fix SMTP smuggling, remote crash, and hardening issues.
Wietse Venema announced the Postfix stable release 3.11.7 alongside legacy releases 3.10.14 and 3.9.15. The releases fix SMTP smuggling, a remote crash vulnerability, and include hardening changes in the widely used mail transfer agent. Administrators running Postfix are advised to update to the patched versions.
- Postfix 3.11.7 fixes SMTP smuggling and a remote crash issue.
- Legacy releases 3.10.14 and 3.9.15 carry the same fixes.
- Hardening improvements are included in the new releases.
- Vendors
- Postfix
From the original article
Posted by Solar Designer on Sep 09 ----- Forwarded message from Wietse Venema via Postfix-announce ----- To: Postfix announce Date: Tue, 8 Sep 2026 07:56:36 -0400 (EDT) CC: Postfix users Subject: [pfx-ann] Postfix stable release 3. 11. 7 and legacy releases 3.
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