PHP - Problema con php mailer

<div class="col-sm-6">

<div class="form">

<div class="form-wrap">

<div class="form-wrap-group"><input class="form-control" placeholder="Tu Nombre" type="text" /> <input class="border-top-transparent form-control" placeholder="Asunto" type="text" /></div>

<div class="form-wrap-group border-left-transparent"><input class="form-control" placeholder="Tu Email" type="text" /> <input class="border-top-transparent form-control" placeholder="Tu Teléfono" type="text" /></div>

</div>

</div>

<textarea class="border-top-transparent form-control" name="message" placeholder="Quieres comentar? ..." rows="8"></textarea><button class="btn-danger btn-md btn-block" type="submit">Enviar</button></div>

</div>

<form id="form-yorma" method="POST" action="enviar.php">

<!--Aquí va todo el contenido del  form-->

</form>