User registration is now a Mailable. See #636

app/Mail/RegisteredUser.php

@@ -0,0 +1,37 @@
+<?php
+
+namespace FireflyIII\Mail;
+
+use Illuminate\Bus\Queueable;
+use Illuminate\Mail\Mailable;
+use Illuminate\Queue\SerializesModels;
+
+class RegisteredUser extends Mailable
+{
+    use Queueable, SerializesModels;
+    /** @var  string */
+    public $address;
+    /** @var  string */
+    public $ip;
+
+    /**
+     * Create a new message instance.
+     *
+     * @return void
+     */
+    public function __construct(string $address, string $ip)
+    {
+        $this->address = $address;
+        $this->ip      = $ip;
+    }
+
+    /**
+     * Build the message.
+     *
+     * @return $this
+     */
+    public function build()
+    {
+        return $this->view('emails.registered-html')->text('emails.registered-text')->subject('Welcome to Firefly III!');
+    }
+}