Aggiornato Composer

vendor/symfony/mime/Header/AbstractHeader.php

@@ -109,6 +109,11 @@ abstract class AbstractHeader implements HeaderInterface
                 }
                 $phraseStr = $this->encodeWords($header, $string, $usedLength);
             }
+        } elseif (str_contains($phraseStr, '(')) {
+            foreach (['\\', '"'] as $char) {
+                $phraseStr = str_replace($char, '\\'.$char, $phraseStr);
+            }
+            $phraseStr = '"'.$phraseStr.'"';
         }
 
         return $phraseStr;
@@ -195,7 +200,7 @@ abstract class AbstractHeader implements HeaderInterface
         $encodingWrapperLength = \strlen('=?'.$charsetDecl.'?'.self::$encoder->getName().'??=');
 
         if ($firstLineOffset >= 75) {
-            //Does this logic need to be here?
+            // Does this logic need to be here?
             $firstLineOffset = 0;
         }
 
@@ -226,7 +231,7 @@ abstract class AbstractHeader implements HeaderInterface
     /**
      * Generate a list of all tokens in the final header.
      */
-    protected function toTokens(string $string = null): array
+    protected function toTokens(?string $string = null): array
     {
         if (null === $string) {
             $string = $this->getBodyAsString();