Add queueMailsByDefault method

src/Illuminate/Mail/Mailer.php

@@ -88,6 +88,13 @@ class Mailer implements MailerContract, MailQueueContract
      */
     protected $queue;
 
+    /**
+     * Indicates if mails should be queued by default.
+     * 
+     * @var bool
+     */
+    protected $queueMailsByDefault = false;
+
     /**
      * Create a new Mailer instance.
      *
@@ -349,7 +356,7 @@ public function send($view, array $data = [], $callback = null)
      */
     protected function sendMailable(MailableContract $mailable)
     {
-        return $mailable instanceof ShouldQueue
+        return ($mailable instanceof ShouldQueue || $this->queueMailsByDefault)
                         ? $mailable->mailer($this->name)->queue($this->queue)
                         : $mailable->mailer($this->name)->send($this);
     }
@@ -461,6 +468,17 @@ protected function setGlobalToAndRemoveCcAndBcc($message)
         $message->forgetBcc();
     }
 
+    /**
+     * Indicate that all mailables should be queued by default.
+     * 
+     * @param  bool  $queue
+     * @return void
+     */
+    public function queueMailsByDefault(bool $shouldQueue = true)
+    {
+        $this->queueMailsByDefault = $shouldQueue;
+    }
+
     /**
      * Queue a new mail message for sending.
      *

src/Illuminate/Support/Facades/Mail.php

@@ -57,6 +57,7 @@
  * @method static bool hasSent(string $mailable)
  * @method static \Illuminate\Support\Collection queued(string|\Closure $mailable, callable|null $callback = null)
  * @method static bool hasQueued(string $mailable)
+ * @method static void queueMailsByDefault(bool $shouldQueue = true)
  *
  * @see \Illuminate\Mail\MailManager
  * @see \Illuminate\Support\Testing\Fakes\MailFake

src/Illuminate/Support/Testing/Fakes/MailFake.php

@@ -47,6 +47,13 @@ class MailFake implements Factory, Fake, Mailer, MailQueue
      */
     protected $queuedMailables = [];
 
+    /**
+     * Indicates if mails should be queued by default.
+     * 
+     * @var bool
+     */
+    protected $queueMailsByDefault = false;
+
     /**
      * Create a new mail fake.
      *
@@ -476,7 +483,7 @@ public function raw($text, $callback)
      */
     public function send($view, array $data = [], $callback = null)
     {
-        return $this->sendMail($view, $view instanceof ShouldQueue);
+        return $this->sendMail($view, ($view instanceof ShouldQueue || $this->queueMailsByDefault));
     }
 
     /**
@@ -516,6 +523,17 @@ protected function sendMail($view, $shouldQueue = false)
         $this->mailables[] = $view;
     }
 
+    /**
+     * Indicate that all mailables should be queued by default.
+     * 
+     * @param  bool  $queue
+     * @return void
+     */
+    public function queueMailsByDefault(bool $shouldQueue = true)
+    {
+        $this->queueMailsByDefault = $shouldQueue;
+    }
+
     /**
      * Queue a new message for sending.
      *

tests/Support/SupportTestingMailFakeTest.php

@@ -310,6 +310,22 @@ public function testSendQueuesAMailableThatShouldBeQueued()
         }
     }
 
+    public function testSendQueuesAMailableThatShouldBeQueuedByDefault()
+    {
+        $this->fake->queueMailsByDefault();
+
+        $this->fake->to('[email protected]')->send($this->mailable);
+
+        $this->fake->assertQueued(MailableStub::class);
+
+        try {
+            $this->fake->assertSent(MailableStub::class);
+            $this->fail();
+        } catch (ExpectationFailedException $e) {
+            $this->assertStringContainsString('The expected [Illuminate\Tests\Support\MailableStub] mailable was not sent.', $e->getMessage());
+        }
+    }
+
     public function testAssertNothingSent()
     {
         $this->fake->assertNothingSent();