Email server with php

Server Config
1

Hi guys,

I’m trying to send email to clients with this php script using my hostmonster server.
But it doesn’t send the email and it shows no errors so I don’t know what the problem is. I’m guessing it has to do with the SMTP that has to be authenticated but I have no idea how to do that (tried to for 5 hours now).

If the solution is too complicated, could you guide me on any other way I can send emails to clients using php (maybe without SMTP)?


<?php


if ($_POST['submit'])
{
    //get data from form
    $name = $_POST['name'];
    $message = $_POST['message'];
    
    if ($name&&$message)
    {
      $namelen=20;
      $messagelen=300;
       if (strlen($name)<=$namelen&&strlen($message)<=$messagelen)
       {
           //everything is ok
           //set smpt in php.ini
           ini_set("SMTP", "mail.ciudadanossinfronteras.com");


            //setup variables
            $to = "adamschroeder@asia.com";
            $subject = "email from adam";
            $headers = "From: admin@ciudadanossinfronteras.com";
            
            $body = "This is an email from $name\
\
$message";

            mail($to, $subject, $body, $headers);
            
            die();

       }
       else 
            die("Max length for name is $namelen and max length for message is $messagelen");
       



    }
       else
           die("you must enter name and message");
}

?>

<html>

<form action='sendmeanemail.php' method='POST'>
Name:<input type='text' name='name'><br>
Message<textarea name='message'></textarea><p>
<input type='submit' name='submit' value='Send me this'>

</html>