Code Mail MLR

<div class="card">
            <div class="card-body">
                <div class="card" style="margin-bottom: 50px;">
                    <div class="card-body">
                        <h4 class="card-title">Nous contacter</h4>
                    </div>
                </div>
                <div class="row">
                    <div class="col-md-12">
                        <div class="well well-sm">
                           <form role="form" method="POST" action="">
                                <div class="row">
                                    <div class="col-md-6">
                                        <div class="form-group">
                                            <label for="name">
                                                Nom</label>
                                            <input type="text" class="form-control" id="name" placeholder="Entrez votre nom" required="required" />
                                        </div>
                                        <div class="form-group">
                                            <label for="email">
                                                Adresse mail</label>
                                            <div class="input-group">
                                                <span class="input-group-addon"><span class="glyphicon glyphicon-envelope"></span>
                                                </span>
                                                <input type="email" class="form-control" id="email" placeholder="Entrez votre adresse mail" required="required" />
                                            </div>
                                        </div>
                                        <div class="form-group">
                                            <label for="subject">
                                                Sujet</label>
                                            <div class="input-group">
                                                <span class="input-group-addon"><span class="glyphicon glyphicon-envelope"></span>
                                                </span>
                                                <input type="text" class="form-control" name="subject" id="subject" placeholder="Entrez votre sujet" required="required" />
                                            </div>
                                        </div>
                                    </div>
                                    <div class="col-md-6">
                                        <div class="form-group">
                                            <label for="message">
                                                Message</label>
                                            <textarea name="message" id="message" class="form-control" rows="9" cols="25" required="required"
                                                      placeholder="Message"></textarea>
                                        </div>
                                    </div>
                                    <div class="col-md-12">
                                        <button type="submit" class="btn btn-primary pull-right" id="formcontact" name="formcontact">
                                            Envoyer</button>
                                    </div>
                                </div>
                            </form>
                        </div>
                    </div>
                </div>
            </div>
        </div>
        <?php
        if(isset($_POST['formcontact'])) {

            $name = htmlspecialchars($_POST['name']);
    		$mail = htmlspecialchars($_POST['email']);
    		$sujet = htmlspecialchars($_POST['subject']);
    		$message = htmlspecialchars($_POST['message']);

			require_once(__DIR__ . '../../class.phpmailer.php');
			require_once(__DIR__ . '../../class.smtp.php');

			$sendmail = new PHPMailer();
			$sendmail->IsSMTP();
			$sendmail->Host = 'smtp.lhmail.fr';
			$sendmail->SMTPAuth = true;
			$sendmail->Username = "no-reply@a2m-official.fr";		// A PERSONNALISER
			$sendmail->Password = "motdepasse";				// A PERSONNALISER
			$sendmail->SMTPSecure = 'tls';
			$sendmail->Port = 25;

			// Expéditeur
			$sendmail->SetFrom($sendmail->Username, 'A2M');	// A PERSONNALISER
			// Destinataire
			$sendmail->AddAddress($mail, '');				// A PERSONNALISER
			// Objet
			$sendmail->Subject = 'MLRomorantin - '.$sujet;				// A PERSONNALISER
			// Votre message
			$sendmail->MsgHTML('<p>'.$message.'</p>');		// A PERSONNALISER

			// Envoi du mail avec gestion des erreurs
			if(!$sendmail->Send()) {
			  echo 'Erreur : ' . $sendmail->ErrorInfo;
			} else {
			  echo '<h1>Message envoyé !<h1>';
			}
        }
		?>