diff --git a/system/functions.php b/system/functions.php
index 23e2d219..12aea27b 100644
--- a/system/functions.php
+++ b/system/functions.php
@@ -800,6 +800,7 @@ function getWorldName($id)
  */
 function _mail($to, $subject, $body, $altBody = '', $add_html_tags = true)
 {
+	/** @var PHPMailer $mailer */
 	global $mailer, $config;
 	if(!$mailer)
 	{
@@ -807,6 +808,9 @@ function _mail($to, $subject, $body, $altBody = '', $add_html_tags = true)
 		$mailer = new PHPMailer();
 		$mailer->setLanguage('en', LIBS . 'phpmailer/language/');
 	}
+	else {
+		$mailer->clearAllRecipients();
+	}
 
 	$signature_html = '';
 	if(isset($config['mail_signature']['html']))