Fix incorrect Reply-To header class map

Author: srenon

Mail/Smtp.php

@@ -189,13 +189,13 @@ protected function setReplyToPath($message)
 
         if (empty($message->getHeaders()->get('reply-to')?->getAddresses()) && $dataHelper->getConfigSetReplyTo()) {
             if ($returnPathEmail instanceof Address) {
-                $message->getHeaders()->addMailboxHeader('reply-to', $returnPathEmail);
+                $message->getHeaders()->addMailboxListHeader('reply-to', [$returnPathEmail]);
             } elseif (!empty($returnPathEmail)) {
                 $name = $messageFromAddress instanceof Address ? $messageFromAddress->getName() : $returnPathEmail;
 
-                $message->getHeaders()->addMailboxHeader(
+                $message->getHeaders()->addMailboxListHeader(
                     'reply-to',
-                    new Address($returnPathEmail, $name)
+                    [new Address($returnPathEmail, $name)]
                 );
             }
         }

composer.json

@@ -23,7 +23,7 @@
         "magepal/magento2-core":">1.1.0"
     },
     "type": "magento2-module",
-    "version": "3.0.3",
+    "version": "3.0.4",
     "license": [
         "proprietary"
     ],