Merge branch '4.4' into 5.2

* 4.4:
  [ErrorHandler] fix handling buffered SilencedErrorContext
  [HttpClient] fix Psr18Client when allow_url_fopen=0
  [DependencyInjection] Add support of PHP enumerations
  [Cache] handle prefixed redis connections when clearing pools
  [Cache] fix eventual consistency when using RedisTagAwareAdapter with a cluster
  [Validator][Translation] Add ExpressionLanguageSyntax en and fr
  [HttpKernel] [HttpCache] Keep s-maxage=0 from ESI sub-responses
  [Cache] Disable locking on Windows by default
  [DependencyInjection] Fix binding "iterable $foo" when using the PHP-DSL
  [Config] fix tracking default values that reference the parent class
  [DependencyInjection] fix accepted types on FactoryTrait::factory()
  [VarDumper] Fix tests for PHP 8.1
  [Mailer] fix encoding of addresses using SmtpTransport
  [MonologBridge] Fix the server:log help --filter sample

Author: nicolas-grekas

Tests/Transport/Smtp/SmtpTransportTest.php

@@ -114,6 +114,25 @@ public function testSendInvalidMessage()
         $this->assertNotContains("\r\n.\r\n", $stream->getCommands());
         $this->assertTrue($stream->isClosed());
     }
+
+    public function testWriteEncodedRecipientAndSenderAddresses()
+    {
+        $stream = new DummyStream();
+
+        $transport = new SmtpTransport($stream);
+
+        $message = new Email();
+        $message->from('sender@exämple.org');
+        $message->addTo('recipient@exämple.org');
+        $message->addTo('recipient2@example.org');
+        $message->text('.');
+
+        $transport->send($message);
+
+        $this->assertContains("MAIL FROM:<sender@xn--exmple-cua.org>\r\n", $stream->getCommands());
+        $this->assertContains("RCPT TO:<recipient@xn--exmple-cua.org>\r\n", $stream->getCommands());
+        $this->assertContains("RCPT TO:<recipient2@example.org>\r\n", $stream->getCommands());
+    }
 }
 
 class DummyStream extends AbstractStream

Transport/Smtp/SmtpTransport.php

@@ -194,9 +194,9 @@ protected function doSend(SentMessage $message): void
 
         try {
             $envelope = $message->getEnvelope();
-            $this->doMailFromCommand($envelope->getSender()->getAddress());
+            $this->doMailFromCommand($envelope->getSender()->getEncodedAddress());
             foreach ($envelope->getRecipients() as $recipient) {
-                $this->doRcptToCommand($recipient->getAddress());
+                $this->doRcptToCommand($recipient->getEncodedAddress());
             }
 
             $this->executeCommand("DATA\r\n", [354]);