php - Why is contact form not sending email to client? -

when change email personal hotmail address, message turns - although in spam folder. when change client's email, message doesn't turn @ all. know how can fix this?

this php form:

<?php  if(isset($_post['submit'])) { $name = $_post['name']; $address = $_post['address']; $number = $_post['number']; $email = $_post['email']; $message = $_post['message']; $subject = 'message reef cleaning solutions website'; $to = 'info@address.co.uk';  if (empty($name) || empty($address) || empty($number) || empty($email) || empty($subject) || empty($message)) {     if (empty($name))         $error['name'] = "please enter full name";     if (empty($address))         $error['address'] = "please enter address";     if (empty($number))         $error['number'] = "please enter contact number";     if (empty($email))         $error['email'] = "please enter valid email address";     if (empty($message))         $error['message'] = "please write message, enquiries or other concerns above"; } else { //if not empty     $body = "     name: $name\r\n     address: $address\r\n     number: $number\r\n     email: $email\r\n     message: $message     ";      $headers="from: {$email}\r\nreply-to: {$email}"; //create headers email      if(mail($to,$subject,$body,$headers))     {       $success = "mail has been sent";     }     else     {      echo "error during sending mail";     } } } ?> 

this html

 <form method="post">        <table border="1">             <tr>             <td><label for="name" class="g">name</label></td>             <td><input id="name" name="name" type="text" autofocus required /></td>             </tr>              <tr>             <td><label for="address" class="g">address</label></td>             <td><textarea rows="3" id="address" name="address" cols="50"></textarea></td>             </tr>              <tr>             <td><label for="number" class="g">contact number</label></td>             <td><input id="number" name="number" type="text" autofocus required /></td>             </tr>              <tr>             <td><label for="email" class="g">email</label></td>             <td><input id="email" name="email" type="text" placeholder="example@domain.com" autofocus required /></td>             </tr>              <tr>             <td><label for="message" class="g">enquiry</label></td>             <td><textarea rows="3" id="message" name="message" required cols="50"></textarea></td>             </tr>             </table>             <input type="submit" value="submit" name="submit" />              <div id="message-sent">              <?php             if ($success) {                 echo $success;             }             ?>             </div>              </form> 

if receive message on email, it's not problem php code, because send mail.

so, configured email correct ? can send email address personnal address ?

you tell email considered spam on personnal address, maybe it's same thing other address, message dont fall in "spam" folder, not allowed enter mailbox.