Language String failed to load:
 Recipients_failed [mail]

 *[Mail] = the email address*

if(isset['[mail1]']){

    $mail = new PHPmailer();
            $mail->IsSMTP();
            $mail->IsHTML(true);
            $mail->Host=*;
            $mail->Port=*;
            $mail->From='no-reply@*.fr';
            $mail->FromName=*;
            $mail->SMTPSecure = 'tls';

            $mail->SMTPAuth=true;
            $mail->Username='no-reply@*.fr';
            $mail->Password='*';

            $mail->AddAddress([mail1]);

            $mail->Subject="*";

            $mail->Body = utf8_decode("*");
if(!$mail->Send()){
            die($mail->ErrorInfo);
        }

        $mail->SmtpClose();
        unset($mail);
}