diff --git a/src/lib/PHPMailer/DSNConfigurator.php b/src/lib/PHPMailer/DSNConfigurator.php
new file mode 100644
index 0000000..566c961
--- /dev/null
+++ b/src/lib/PHPMailer/DSNConfigurator.php
@@ -0,0 +1,245 @@
+<?php
+
+/**
+ * PHPMailer - PHP email creation and transport class.
+ * PHP Version 5.5.
+ *
+ * @see https://github.com/PHPMailer/PHPMailer/ The PHPMailer GitHub project
+ *
+ * @author    Marcus Bointon (Synchro/coolbru) <phpmailer@synchromedia.co.uk>
+ * @author    Jim Jagielski (jimjag) <jimjag@gmail.com>
+ * @author    Andy Prevost (codeworxtech) <codeworxtech@users.sourceforge.net>
+ * @author    Brent R. Matzelle (original founder)
+ * @copyright 2012 - 2023 Marcus Bointon
+ * @copyright 2010 - 2012 Jim Jagielski
+ * @copyright 2004 - 2009 Andy Prevost
+ * @license   http://www.gnu.org/copyleft/lesser.html GNU Lesser General Public License
+ * @note      This program is distributed in the hope that it will be useful - WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.
+ */
+
+namespace PHPMailer\PHPMailer;
+
+/**
+ * Configure PHPMailer with DSN string.
+ *
+ * @see https://en.wikipedia.org/wiki/Data_source_name
+ *
+ * @author Oleg Voronkovich <oleg-voronkovich@yandex.ru>
+ */
+class DSNConfigurator
+{
+    /**
+     * Create new PHPMailer instance configured by DSN.
+     *
+     * @param string $dsn        DSN
+     * @param bool   $exceptions Should we throw external exceptions?
+     *
+     * @return PHPMailer
+     */
+    public static function mailer($dsn, $exceptions = null)
+    {
+        static $configurator = null;
+
+        if (null === $configurator) {
+            $configurator = new DSNConfigurator();
+        }
+
+        return $configurator->configure(new PHPMailer($exceptions), $dsn);
+    }
+
+    /**
+     * Configure PHPMailer instance with DSN string.
+     *
+     * @param PHPMailer $mailer PHPMailer instance
+     * @param string    $dsn    DSN
+     *
+     * @return PHPMailer
+     */
+    public function configure(PHPMailer $mailer, $dsn)
+    {
+        $config = $this->parseDSN($dsn);
+
+        $this->applyConfig($mailer, $config);
+
+        return $mailer;
+    }
+
+    /**
+     * Parse DSN string.
+     *
+     * @param string $dsn DSN
+     *
+     * @throws Exception If DSN is malformed
+     *
+     * @return array Configuration
+     */
+    private function parseDSN($dsn)
+    {
+        $config = $this->parseUrl($dsn);
+
+        if (false === $config || !isset($config['scheme']) || !isset($config['host'])) {
+            throw new Exception('Malformed DSN');
+        }
+
+        if (isset($config['query'])) {
+            parse_str($config['query'], $config['query']);
+        }
+
+        return $config;
+    }
+
+    /**
+     * Apply configuration to mailer.
+     *
+     * @param PHPMailer $mailer PHPMailer instance
+     * @param array     $config Configuration
+     *
+     * @throws Exception If scheme is invalid
+     */
+    private function applyConfig(PHPMailer $mailer, $config)
+    {
+        switch ($config['scheme']) {
+            case 'mail':
+                $mailer->isMail();
+                break;
+            case 'sendmail':
+                $mailer->isSendmail();
+                break;
+            case 'qmail':
+                $mailer->isQmail();
+                break;
+            case 'smtp':
+            case 'smtps':
+                $mailer->isSMTP();
+                $this->configureSMTP($mailer, $config);
+                break;
+            default:
+                throw new Exception(
+                    sprintf(
+                        'Invalid scheme: "%s". Allowed values: "mail", "sendmail", "qmail", "smtp", "smtps".',
+                        $config['scheme']
+                    )
+                );
+        }
+
+        if (isset($config['query'])) {
+            $this->configureOptions($mailer, $config['query']);
+        }
+    }
+
+    /**
+     * Configure SMTP.
+     *
+     * @param PHPMailer $mailer PHPMailer instance
+     * @param array     $config Configuration
+     */
+    private function configureSMTP($mailer, $config)
+    {
+        $isSMTPS = 'smtps' === $config['scheme'];
+
+        if ($isSMTPS) {
+            $mailer->SMTPSecure = PHPMailer::ENCRYPTION_STARTTLS;
+        }
+
+        $mailer->Host = $config['host'];
+
+        if (isset($config['port'])) {
+            $mailer->Port = $config['port'];
+        } elseif ($isSMTPS) {
+            $mailer->Port = SMTP::DEFAULT_SECURE_PORT;
+        }
+
+        $mailer->SMTPAuth = isset($config['user']) || isset($config['pass']);
+
+        if (isset($config['user'])) {
+            $mailer->Username = $config['user'];
+        }
+
+        if (isset($config['pass'])) {
+            $mailer->Password = $config['pass'];
+        }
+    }
+
+    /**
+     * Configure options.
+     *
+     * @param PHPMailer $mailer  PHPMailer instance
+     * @param array     $options Options
+     *
+     * @throws Exception If option is unknown
+     */
+    private function configureOptions(PHPMailer $mailer, $options)
+    {
+        $allowedOptions = get_object_vars($mailer);
+
+        unset($allowedOptions['Mailer']);
+        unset($allowedOptions['SMTPAuth']);
+        unset($allowedOptions['Username']);
+        unset($allowedOptions['Password']);
+        unset($allowedOptions['Hostname']);
+        unset($allowedOptions['Port']);
+        unset($allowedOptions['ErrorInfo']);
+
+        $allowedOptions = \array_keys($allowedOptions);
+
+        foreach ($options as $key => $value) {
+            if (!in_array($key, $allowedOptions)) {
+                throw new Exception(
+                    sprintf(
+                        'Unknown option: "%s". Allowed values: "%s"',
+                        $key,
+                        implode('", "', $allowedOptions)
+                    )
+                );
+            }
+
+            switch ($key) {
+                case 'AllowEmpty':
+                case 'SMTPAutoTLS':
+                case 'SMTPKeepAlive':
+                case 'SingleTo':
+                case 'UseSendmailOptions':
+                case 'do_verp':
+                case 'DKIM_copyHeaderFields':
+                    $mailer->$key = (bool) $value;
+                    break;
+                case 'Priority':
+                case 'SMTPDebug':
+                case 'WordWrap':
+                    $mailer->$key = (int) $value;
+                    break;
+                default:
+                    $mailer->$key = $value;
+                    break;
+            }
+        }
+    }
+
+    /**
+     * Parse a URL.
+     * Wrapper for the built-in parse_url function to work around a bug in PHP 5.5.
+     *
+     * @param string $url URL
+     *
+     * @return array|false
+     */
+    protected function parseUrl($url)
+    {
+        if (\PHP_VERSION_ID >= 50600 || false === strpos($url, '?')) {
+            return parse_url($url);
+        }
+
+        $chunks = explode('?', $url);
+        if (is_array($chunks)) {
+            $result = parse_url($chunks[0]);
+            if (is_array($result)) {
+                $result['query'] = $chunks[1];
+            }
+            return $result;
+        }
+
+        return false;
+    }
+}