diff --git a/composer.lock b/composer.lock
index 85df22a7..e6396d94 100644
--- a/composer.lock
+++ b/composer.lock
@@ -430,16 +430,16 @@
         },
         {
             "name": "swiftmailer/swiftmailer",
-            "version": "v6.1.1",
+            "version": "v6.1.2",
             "source": {
                 "type": "git",
                 "url": "https://github.com/swiftmailer/swiftmailer.git",
-                "reference": "aa899fef280b1c1aec8d5d4ac069af7f80c89a23"
+                "reference": "7d760881d266d63c5e7a1155cbcf2ac656a31ca8"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/swiftmailer/swiftmailer/zipball/aa899fef280b1c1aec8d5d4ac069af7f80c89a23",
-                "reference": "aa899fef280b1c1aec8d5d4ac069af7f80c89a23",
+                "url": "https://api.github.com/repos/swiftmailer/swiftmailer/zipball/7d760881d266d63c5e7a1155cbcf2ac656a31ca8",
+                "reference": "7d760881d266d63c5e7a1155cbcf2ac656a31ca8",
                 "shasum": ""
             },
             "require": {
@@ -485,7 +485,62 @@
                 "mail",
                 "mailer"
             ],
-            "time": "2018-07-04T11:12:44+00:00"
+            "time": "2018-07-13T07:04:35+00:00"
+        },
+        {
+            "name": "symfony/polyfill-ctype",
+            "version": "v1.8.0",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/symfony/polyfill-ctype.git",
+                "reference": "7cc359f1b7b80fc25ed7796be7d96adc9b354bae"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/symfony/polyfill-ctype/zipball/7cc359f1b7b80fc25ed7796be7d96adc9b354bae",
+                "reference": "7cc359f1b7b80fc25ed7796be7d96adc9b354bae",
+                "shasum": ""
+            },
+            "require": {
+                "php": ">=5.3.3"
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "1.8-dev"
+                }
+            },
+            "autoload": {
+                "psr-4": {
+                    "Symfony\\Polyfill\\Ctype\\": ""
+                },
+                "files": [
+                    "bootstrap.php"
+                ]
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Symfony Community",
+                    "homepage": "https://symfony.com/contributors"
+                },
+                {
+                    "name": "Gert de Pagter",
+                    "email": "BackEndTea@gmail.com"
+                }
+            ],
+            "description": "Symfony polyfill for ctype functions",
+            "homepage": "https://symfony.com",
+            "keywords": [
+                "compatibility",
+                "ctype",
+                "polyfill",
+                "portable"
+            ],
+            "time": "2018-04-30T19:57:29+00:00"
         },
         {
             "name": "symfony/polyfill-mbstring",
@@ -673,20 +728,21 @@
         },
         {
             "name": "twig/twig",
-            "version": "v2.4.8",
+            "version": "v2.5.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/twigphp/Twig.git",
-                "reference": "7b604c89da162034bdf4bb66310f358d313dd16d"
+                "reference": "6a5f676b77a90823c2d4eaf76137b771adf31323"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/twigphp/Twig/zipball/7b604c89da162034bdf4bb66310f358d313dd16d",
-                "reference": "7b604c89da162034bdf4bb66310f358d313dd16d",
+                "url": "https://api.github.com/repos/twigphp/Twig/zipball/6a5f676b77a90823c2d4eaf76137b771adf31323",
+                "reference": "6a5f676b77a90823c2d4eaf76137b771adf31323",
                 "shasum": ""
             },
             "require": {
                 "php": "^7.0",
+                "symfony/polyfill-ctype": "^1.8",
                 "symfony/polyfill-mbstring": "~1.0"
             },
             "require-dev": {
@@ -697,7 +753,7 @@
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "2.4-dev"
+                    "dev-master": "2.5-dev"
                 }
             },
             "autoload": {
@@ -726,16 +782,16 @@
                 },
                 {
                     "name": "Twig Team",
-                    "homepage": "http://twig.sensiolabs.org/contributors",
+                    "homepage": "https://twig.symfony.com/contributors",
                     "role": "Contributors"
                 }
             ],
             "description": "Twig, the flexible, fast, and secure template language for PHP",
-            "homepage": "http://twig.sensiolabs.org",
+            "homepage": "https://twig.symfony.com",
             "keywords": [
                 "templating"
             ],
-            "time": "2018-04-02T09:24:19+00:00"
+            "time": "2018-07-13T07:18:09+00:00"
         }
     ],
     "packages-dev": [
@@ -1493,16 +1549,16 @@
         },
         {
             "name": "phpunit/phpunit-mock-objects",
-            "version": "5.0.7",
+            "version": "5.0.8",
             "source": {
                 "type": "git",
                 "url": "https://github.com/sebastianbergmann/phpunit-mock-objects.git",
-                "reference": "3eaf040f20154d27d6da59ca2c6e28ac8fd56dce"
+                "reference": "6f9a3c8bf34188a2b53ce2ae7a126089c53e0a9f"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/sebastianbergmann/phpunit-mock-objects/zipball/3eaf040f20154d27d6da59ca2c6e28ac8fd56dce",
-                "reference": "3eaf040f20154d27d6da59ca2c6e28ac8fd56dce",
+                "url": "https://api.github.com/repos/sebastianbergmann/phpunit-mock-objects/zipball/6f9a3c8bf34188a2b53ce2ae7a126089c53e0a9f",
+                "reference": "6f9a3c8bf34188a2b53ce2ae7a126089c53e0a9f",
                 "shasum": ""
             },
             "require": {
@@ -1548,7 +1604,7 @@
                 "mock",
                 "xunit"
             ],
-            "time": "2018-05-29T13:50:43+00:00"
+            "time": "2018-07-13T03:27:23+00:00"
         },
         {
             "name": "sebastian/code-unit-reverse-lookup",
diff --git a/config/config.example.ini b/config/config.example.ini
index 1dab1279..38985de1 100644
--- a/config/config.example.ini
+++ b/config/config.example.ini
@@ -11,11 +11,34 @@ database = database
 charset = utf8mb4
 collation = utf8mb4_bin
 
+[Cache]
+host = 127.0.0.1
+prefix = msz:
+
+[Auth]
+prevent_registration = false
+
 [Site]
 name = Misuzu
 description = Describe your description.
 twitter = flashiinet
 url = http://misuzu.localhost/
+;external_logo = https://static.flash.moe/images/flashii-logo-v2.png
+;social_media = https://twitter.com/flashiinet,https://www.youtube.com/user/flashiinet,https://plus.google.com/u/0/111396468161662583486
+;embed_linked_data = false
 
 [GeoIP]
 database_path=/path/to/GeoLite2-Country.mmdb
+
+[Mail]
+method = null
+
+; method = sendmail
+; command = /usr/sbin/sendmail -bs
+
+; method = smtp
+; host = smtp.misuzu.localhost
+; port = 25
+; encryption = tls
+; username = sys@misuzu.localhost
+; password = flashwaveiscool78
diff --git a/public/index.php b/public/index.php
index 436bcf1c..cc20c81e 100644
--- a/public/index.php
+++ b/public/index.php
@@ -1,9 +1,18 @@
 <?php
+use Misuzu\Application;
 use Misuzu\Cache;
 use Misuzu\Database;
 
 require_once __DIR__ . '/../misuzu.php';
 
+/*if ($app->getUserId() === 1) {
+    $sMessage = new Swift_Message('Test e-mail!');
+    $sMessage->setFrom(['sys@flashii.net' => 'Flashii.net']);
+    $sMessage->setTo(['julianvdg@gmail.com' => 'flash']);
+    $sMessage->setBody('Misuzu and SwiftMailer are cool and cute.');
+    var_dump(Application::mailer()->send($sMessage));
+}*/
+
 $config = $app->getConfig();
 $tpl = $app->getTemplating();
 
diff --git a/src/Application.php b/src/Application.php
index ef171b49..f4ea1a27 100644
--- a/src/Application.php
+++ b/src/Application.php
@@ -8,6 +8,10 @@ use Misuzu\IO\DirectoryDoesNotExistException;
 use Misuzu\Users\Session;
 use UnexpectedValueException;
 use InvalidArgumentException;
+use Swift_Mailer;
+use Swift_NullTransport;
+use Swift_SmtpTransport;
+use Swift_SendmailTransport;
 
 /**
  * Handles the set up procedures.
@@ -28,6 +32,12 @@ class Application extends ApplicationBase
         'mysql-main',
     ];
 
+    private const MAIL_TRANSPORT = [
+        'null' => Swift_NullTransport::class,
+        'smtp' => Swift_SmtpTransport::class,
+        'sendmail' => Swift_SendmailTransport::class,
+    ];
+
     /**
      * Active Session ID.
      * @var int
@@ -52,6 +62,8 @@ class Application extends ApplicationBase
      */
     private $templatingInstance = null;
 
+    private $mailerInstance = null;
+
     /**
      * Constructor, called by ApplicationBase::start() which also passes the arguments through.
      * @param null|string $configFile
@@ -296,4 +308,65 @@ class Application extends ApplicationBase
 
         return $this->templatingInstance;
     }
+
+    public function startMailer(): void
+    {
+        if (!empty($this->mailerInstance)) {
+            return;
+        }
+
+        if ($this->configInstance->contains('Mail')) {
+            $method = strtolower($this->configInstance->get('Mail', 'method'));
+        }
+
+        if (empty($method) || !array_key_exists($method, self::MAIL_TRANSPORT)) {
+            $method = 'null';
+        }
+
+        $class = self::MAIL_TRANSPORT[$method];
+        $transport = new $class;
+
+        switch ($method) {
+            case 'sendmail':
+                if ($this->configInstance->contains('Mail', 'command')) {
+                    $transport->setCommand(
+                        $this->configInstance->get('Mail', 'command')
+                    );
+                }
+                break;
+
+            case 'smtp':
+                $transport->setHost($this->configInstance->get('Mail', 'host'));
+                $transport->setPort($this->configInstance->get('Mail', 'port', 'int', 25));
+
+                if ($this->configInstance->contains('Mail', 'encryption')) {
+                    $transport->setEncryption($this->configInstance->get('Mail', 'encryption'));
+                }
+
+                if ($this->configInstance->contains('Mail', 'username')) {
+                    $transport->setUsername($this->configInstance->get('Mail', 'username'));
+                }
+
+                if ($this->configInstance->contains('Mail', 'password')) {
+                    $transport->setPassword($this->configInstance->get('Mail', 'password'));
+                }
+                break;
+        }
+
+        $this->mailerInstance = new Swift_Mailer($transport);
+    }
+
+    public function getMailer(): Swift_Mailer
+    {
+        if (empty($this->mailerInstance)) {
+            $this->startMailer();
+        }
+
+        return $this->mailerInstance;
+    }
+
+    public static function mailer(): Swift_Mailer
+    {
+        return self::getInstance()->getMailer();
+    }
 }