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app/Mail/QrCodeMail.php

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+<?php
+
+namespace App\Mail;
+
+use Illuminate\Bus\Queueable;
+use Illuminate\Mail\Mailable;
+use Illuminate\Queue\SerializesModels;
+
+class QrCodeMail extends Mailable
+{
+    use Queueable, SerializesModels;
+
+    public $user;
+    public $evento;
+    public $cantidad;
+
+    public function __construct($user, $evento, $cantidad)
+    {
+        $this->user = $user;
+        $this->evento = $evento;
+        $this->cantidad = $cantidad;
+    }
+
+    public function build()
+    {
+        return $this->subject('Tus QRs para el evento: ' . $this->evento->nombre_evento)
+                    ->view('emails.qrcodes');
+    }
+}

app/Mail/ResetPasswordMail.php

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+<?php
+
+namespace App\Mail;
+
+use Illuminate\Bus\Queueable;
+use Illuminate\Mail\Mailable;
+use Illuminate\Queue\SerializesModels;
+
+class ResetPasswordMail extends Mailable
+{
+    use Queueable, SerializesModels;
+
+    public $user;
+    public $token;
+
+    public function __construct($user, $token)
+    {
+        $this->user = $user;
+        $this->token = $token;
+    }
+
+    public function build()
+    {
+        return $this->subject('Recuperar contraseña - OnAPB')
+                    ->view('emails.reset_password');
+    }
+}

app/Mail/WelcomeMail.php

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+<?php
+
+namespace App\Mail;
+
+use Illuminate\Bus\Queueable;
+use Illuminate\Mail\Mailable;
+use Illuminate\Queue\SerializesModels;
+
+class WelcomeMail extends Mailable
+{
+    use Queueable, SerializesModels;
+
+    public $user;
+    public $tipo;
+
+    public function __construct($user, $tipo)
+    {
+        $this->user = $user;
+        $this->tipo = $tipo;
+    }
+
+    public function build()
+    {
+        return $this->subject('¡Bienvenido a OnAPB!')
+                    ->view('emails.welcome');
+    }
+}