diff --git a/lib/private/Mail/Mailer.php b/lib/private/Mail/Mailer.php
index c4e89df7304ad..041ab8b0ff725 100644
--- a/lib/private/Mail/Mailer.php
+++ b/lib/private/Mail/Mailer.php
@@ -38,7 +38,7 @@
  *
  * Example usage:
  *
- * 	$mailer = \OC::$server->getMailer();
+ * 	$mailer = \OC::$server->get(\OCP\Mail\IMailer::class);
  * 	$message = $mailer->createMessage();
  * 	$message->setSubject('Your Subject');
  * 	$message->setFrom(array('cloud@domain.org' => 'ownCloud Notifier'));
diff --git a/lib/private/Share20/ProviderFactory.php b/lib/private/Share20/ProviderFactory.php
index b7105c3ebcad1..2800db8177a5e 100644
--- a/lib/private/Share20/ProviderFactory.php
+++ b/lib/private/Share20/ProviderFactory.php
@@ -21,6 +21,7 @@
 use OCP\Federation\ICloudFederationFactory;
 use OCP\Files\IRootFolder;
 use OCP\IServerContainer;
+use OCP\Mail\IMailer;
 use OCP\Security\IHasher;
 use OCP\Share\IManager;
 use OCP\Share\IProviderFactory;
@@ -78,7 +79,7 @@ protected function defaultShareProvider() {
 				$this->serverContainer->getUserManager(),
 				$this->serverContainer->getGroupManager(),
 				$this->serverContainer->get(IRootFolder::class),
-				$this->serverContainer->getMailer(),
+				$this->serverContainer->get(IMailer::class),
 				$this->serverContainer->query(Defaults::class),
 				$this->serverContainer->getL10NFactory(),
 				$this->serverContainer->getURLGenerator(),
@@ -171,7 +172,7 @@ protected function getShareByMailProvider() {
 				$this->serverContainer->get(IRootFolder::class),
 				$this->serverContainer->getL10N('sharebymail'),
 				$this->serverContainer->get(LoggerInterface::class),
-				$this->serverContainer->getMailer(),
+				$this->serverContainer->get(IMailer::class),
 				$this->serverContainer->getURLGenerator(),
 				$this->serverContainer->getActivityManager(),
 				$settingsManager,
diff --git a/lib/public/Mail/IMailer.php b/lib/public/Mail/IMailer.php
index dc49ed007b489..93efdce1a2d3f 100644
--- a/lib/public/Mail/IMailer.php
+++ b/lib/public/Mail/IMailer.php
@@ -14,7 +14,7 @@
  *
  * Example usage:
  *
- * 	$mailer = \OC::$server->getMailer();
+ * 	$mailer = \OC::$server->get(\OCP\Mail\IMailer::class);
  * 	$message = $mailer->createMessage();
  * 	$message->setSubject('Your Subject');
  * 	$message->setFrom(['cloud@domain.org' => 'Nextcloud Notifier']);
diff --git a/lib/public/Util.php b/lib/public/Util.php
index a8ac1e4ee7c37..885e2facc53ee 100644
--- a/lib/public/Util.php
+++ b/lib/public/Util.php
@@ -13,6 +13,7 @@
 use bantu\IniGetWrapper\IniGetWrapper;
 use OC\AppScriptDependency;
 use OC\AppScriptSort;
+use OCP\Mail\IMailer;
 use OCP\Share\IManager;
 use Psr\Container\ContainerExceptionInterface;
 use Psr\Log\LoggerInterface;
@@ -302,7 +303,7 @@ public static function getDefaultEmailAddress(string $user_part): string {
 		$host_name = $config->getSystemValueString('mail_domain', $host_name);
 		$defaultEmailAddress = $user_part.'@'.$host_name;
 
-		$mailer = \OC::$server->getMailer();
+		$mailer = \OC::$server->get(IMailer::class);
 		if ($mailer->validateMailAddress($defaultEmailAddress)) {
 			return $defaultEmailAddress;
 		}