diff --git a/app/config/config.yml b/app/config/config.yml
index 5e53f992f..473246438 100644
--- a/app/config/config.yml
+++ b/app/config/config.yml
@@ -197,7 +197,7 @@ fos_user:
         address: "%from_email%"
         sender_name: wallabag
     service:
-        mailer: Wallabag\Mailer\UserMailer
+        mailer: fos_user.mailer.twig_symfony
 
 fos_oauth_server:
     db_driver:           orm
diff --git a/app/config/services.yml b/app/config/services.yml
index 704c24295..3cca8b30f 100644
--- a/app/config/services.yml
+++ b/app/config/services.yml
@@ -260,16 +260,6 @@ services:
             $defaultSettings: '%wallabag.default_internal_settings%'
             $defaultIgnoreOriginInstanceRules: '%wallabag.default_ignore_origin_instance_rules%'
 
-    Wallabag\Mailer\UserMailer:
-        arguments:
-            $parameters:
-                template:
-                    confirmation: '%fos_user.registration.confirmation.template%'
-                    resetting: '%fos_user.resetting.email.template%'
-                from_email:
-                    confirmation: '%fos_user.registration.confirmation.from_email%'
-                    resetting: '%fos_user.resetting.email.from_email%'
-
     Wallabag\Event\Listener\CreateConfigListener:
         arguments:
             $itemsOnPage: "%wallabag.items_on_page%"
diff --git a/phpstan-baseline.neon b/phpstan-baseline.neon
index 8b8938125..e3bfe3f0a 100644
--- a/phpstan-baseline.neon
+++ b/phpstan-baseline.neon
@@ -60,11 +60,6 @@ parameters:
 			count: 2
 			path: src/Mailer/AuthCodeMailer.php
 
-		-
-			message: "#^PHPDoc type Symfony\\\\Component\\\\Mailer\\\\MailerInterface of property Wallabag\\\\Mailer\\\\UserMailer\\:\\:\\$mailer is not covariant with PHPDoc type Swift_Mailer of overridden property FOS\\\\UserBundle\\\\Mailer\\\\TwigSwiftMailer\\:\\:\\$mailer\\.$#"
-			count: 1
-			path: src/Mailer/UserMailer.php
-
 		-
 			message: "#^Call to an undefined method DOMNode\\:\\:getAttribute\\(\\)\\.$#"
 			count: 1
diff --git a/src/Mailer/UserMailer.php b/src/Mailer/UserMailer.php
deleted file mode 100644
index fa108c3e4..000000000
--- a/src/Mailer/UserMailer.php
+++ /dev/null
@@ -1,78 +0,0 @@
-<?php
-
-namespace Wallabag\Mailer;
-
-use FOS\UserBundle\Mailer\TwigSwiftMailer;
-use Symfony\Component\Mailer\MailerInterface;
-use Symfony\Component\Mime\Address;
-use Symfony\Component\Mime\Email;
-use Symfony\Component\Routing\Generator\UrlGeneratorInterface;
-use Twig\Environment;
-
-/**
- * This replace the default mailer from TwigSwiftMailer by symfony/mailer instead of swiftmailer.
- */
-class UserMailer extends TwigSwiftMailer
-{
-    /**
-     * @var MailerInterface
-     */
-    protected $mailer;
-
-    /**
-     * @var UrlGeneratorInterface
-     */
-    protected $router;
-
-    /**
-     * @var Environment
-     */
-    protected $twig;
-
-    /**
-     * @var array{template: array{confirmation: string, resetting: string}, from_email: array{confirmation: array<string, string>|string, resetting: array<string, string>|string}}
-     */
-    protected $parameters;
-
-    public function __construct(MailerInterface $mailer, UrlGeneratorInterface $router, Environment $twig, array $parameters)
-    {
-        $this->mailer = $mailer;
-        $this->router = $router;
-        $this->twig = $twig;
-        $this->parameters = $parameters;
-    }
-
-    /**
-     * @param string $templateName
-     * @param array  $context
-     * @param array  $fromEmail
-     * @param string $toEmail
-     */
-    protected function sendMessage($templateName, $context, $fromEmail, $toEmail)
-    {
-        $template = $this->twig->load($templateName);
-        $subject = $template->renderBlock('subject', $context);
-        $textBody = $template->renderBlock('body_text', $context);
-
-        $htmlBody = '';
-
-        if ($template->hasBlock('body_html', $context)) {
-            $htmlBody = $template->renderBlock('body_html', $context);
-        }
-
-        $email = (new Email())
-            ->from(new Address(key($fromEmail), current($fromEmail)))
-            ->to($toEmail)
-            ->subject($subject);
-
-        if (!empty($htmlBody)) {
-            $email
-                ->text($textBody)
-                ->html($htmlBody);
-        } else {
-            $email->text($textBody);
-        }
-
-        $this->mailer->send($email);
-    }
-}