🔧

vendor/symfony/mime/Message.php

@@ -24,7 +24,7 @@ class Message extends RawMessage
     private Headers $headers;
     private ?AbstractPart $body;
 
-    public function __construct(Headers $headers = null, AbstractPart $body = null)
+    public function __construct(?Headers $headers = null, ?AbstractPart $body = null)
     {
         $this->headers = $headers ? clone $headers : new Headers();
         $this->body = $body;
@@ -42,7 +42,7 @@ class Message extends RawMessage
     /**
      * @return $this
      */
-    public function setBody(AbstractPart $body = null): static
+    public function setBody(?AbstractPart $body = null): static
     {
         if (1 > \func_num_args()) {
             trigger_deprecation('symfony/mime', '6.2', 'Calling "%s()" without any arguments is deprecated, pass null explicitly instead.', __METHOD__);
@@ -130,11 +130,11 @@ class Message extends RawMessage
      */
     public function ensureValidity()
     {
-        if (!$this->headers->has('To') && !$this->headers->has('Cc') && !$this->headers->has('Bcc')) {
+        if (!$this->headers->get('To')?->getBody() && !$this->headers->get('Cc')?->getBody() && !$this->headers->get('Bcc')?->getBody()) {
             throw new LogicException('An email must have a "To", "Cc", or "Bcc" header.');
         }
 
-        if (!$this->headers->has('From') && !$this->headers->has('Sender')) {
+        if (!$this->headers->get('From')?->getBody() && !$this->headers->get('Sender')?->getBody()) {
             throw new LogicException('An email must have a "From" or a "Sender" header.');
         }
 
@@ -146,7 +146,10 @@ class Message extends RawMessage
         if ($this->headers->has('Sender')) {
             $sender = $this->headers->get('Sender')->getAddress();
         } elseif ($this->headers->has('From')) {
-            $sender = $this->headers->get('From')->getAddresses()[0];
+            if (!$froms = $this->headers->get('From')->getAddresses()) {
+                throw new LogicException('A "From" header must have at least one email address.');
+            }
+            $sender = $froms[0];
         } else {
             throw new LogicException('An email must have a "From" or a "Sender" header.');
         }