diff --git a/src/Symfony/Component/Mime/Email.php b/src/Symfony/Component/Mime/Email.php
index 3fbebc461f..1bcdc8a1cd 100644
--- a/src/Symfony/Component/Mime/Email.php
+++ b/src/Symfony/Component/Mime/Email.php
@@ -423,12 +423,12 @@ class Email extends Message
      */
     private function generateBody(): AbstractPart
     {
-        if (null === $this->text && null === $this->html) {
-            throw new LogicException('A message must have a text and/or an HTML part.');
+        [$htmlPart, $attachmentParts, $inlineParts] = $this->prepareParts();
+        if (null === $this->text && null === $this->html && !$attachmentParts) {
+            throw new LogicException('A message must have a text or an HTML part or attachments.');
         }
 
         $part = null === $this->text ? null : new TextPart($this->text, $this->textCharset);
-        [$htmlPart, $attachmentParts, $inlineParts] = $this->prepareParts();
         if (null !== $htmlPart) {
             if (null !== $part) {
                 $part = new AlternativePart($part, $htmlPart);
@@ -442,7 +442,11 @@ class Email extends Message
         }
 
         if ($attachmentParts) {
-            $part = new MixedPart($part, ...$attachmentParts);
+            if ($part) {
+                $part = new MixedPart($part, ...$attachmentParts);
+            } else {
+                $part = new MixedPart(...$attachmentParts);
+            }
         }
 
         return $part;
diff --git a/src/Symfony/Component/Mime/Tests/EmailTest.php b/src/Symfony/Component/Mime/Tests/EmailTest.php
index 1d45cab9f4..d8a982add7 100644
--- a/src/Symfony/Component/Mime/Tests/EmailTest.php
+++ b/src/Symfony/Component/Mime/Tests/EmailTest.php
@@ -284,6 +284,10 @@ class EmailTest extends TestCase
         $e->html('html content');
         $this->assertEquals(new MixedPart($html, $att), $e->getBody());
 
+        $e = new Email();
+        $e->attach($file);
+        $this->assertEquals(new MixedPart($att), $e->getBody());
+
         $e = new Email();
         $e->html('html content');
         $e->text('text content');