Merge pull request #7317 from kenjis/fix-email-tls-13

fix: [Email] add missing TLS 1.3 support

Author: samsonasik

system/Email/Email.php

@@ -1883,7 +1883,10 @@ protected function SMTPConnect()
             $crypto = stream_socket_enable_crypto(
                 $this->SMTPConnect,
                 true,
-                STREAM_CRYPTO_METHOD_TLSv1_0_CLIENT | STREAM_CRYPTO_METHOD_TLSv1_1_CLIENT | STREAM_CRYPTO_METHOD_TLSv1_2_CLIENT
+                STREAM_CRYPTO_METHOD_TLSv1_0_CLIENT
+                | STREAM_CRYPTO_METHOD_TLSv1_1_CLIENT
+                | STREAM_CRYPTO_METHOD_TLSv1_2_CLIENT
+                | STREAM_CRYPTO_METHOD_TLSv1_3_CLIENT
             );
 
             if ($crypto !== true) {

user_guide_src/source/changelogs/v4.3.3.rst

@@ -9,6 +9,11 @@ Release Date: Unreleased
     :local:
     :depth: 3
 
+SECURITY
+********
+
+- **Email:** Added missing TLS 1.3 support.
+
 BREAKING
 ********