Follow my code with MAILTO:
<form id="main-contact-form" action="MAILTO:[email protected]" method="post" enctype="text/plain">
<div class="row wow fadeInUp" data-wow-duration="1000ms" data-wow-delay="300ms">
<div class="col-sm-6">
<div class="form-group">
<input type="text" name="name" class="form-control" placeholder="Nome" required="required">
</div>
</div>
<div class="col-sm-6">
<div class="form-group">
<input type="email" name="email" class="form-control" placeholder="Email" required="required">
</div>
</div>
</div>
<div class="form-group">
<input type="text" name="subject" class="form-control" placeholder="Assunto" required="required">
</div>
<div class="form-group">
<textarea name="message" id="message" class="form-control" rows="4" placeholder="Escreva sua Mensagem" required="required"></textarea>
</div>
<div class="form-group">
<button type="submit" class="btn-submit">Enviar</button>
</div>
</form>