// Coded by Bader
// Sorry for the ugly style i'm very terrible at designing :3

if(!empty($_POST["from_name"]))
{
$content_choosed = $_POST["content_type"];
$from_email = $_POST["from_email"];
$from_name = $_POST["from_name"];
$subject = $_POST["subject"];
$message = $_POST["message"];
$headers = "From: $from_name < $from_email >\n";
$headers .= "Cc: $from_name < $from_email >\n";
$headers .= 'X-Mailer: PHP/'.phpversion();
$headers .= "X-Priority: 1\n"; // set message priority
$headers .= "Return-Path: $from_email\n"; // returned emails sent to this address
$headers .= "MIME-Version: 1.0\r\n";
if($content_choosed == 1)
{
$headers .= "Content-Type: text/html; charset=iso-8859-1\n";
}
$emails = explode("\n", $_POST["to_emails"]);
$emails_number = count($emails);
$i = 0;

while($i < $emails_number)
{

if(mail($emails[$i], $subject, $message, $headers))
{
echo "<span style='color:green'>Message has been sent successfully to : ".$emails[$i]."</span>
";

}else{

echo "<span style='color:red'>Error sending message to : ".$emails[$i]."</span>
";
}

$i++;
}

}







<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta.2/css/bootstrap.min.css" integrity="sha384-PsH8R72JQ3SOdhVi3uxftmaW6Vc51MKb0q5P2rRUpPvrszuE4W1povHYgTpBfshb" crossorigin="anonymous">
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta.2/js/bootstrap.min.js" integrity="sha384-alpBpkh1PFOepccYVYDB4do5UnbKysX5WZXm3XxPqe5iKTfUKjNkCk9SaVuEZflJ" crossorigin="anonymous"></script>

From Name :
From Email :
Subject :
Message :	<textarea name="message" rows=30 cols=60></textarea>		To Email : <textarea name="to_emails" rows=29 cols=40></textarea>
Choose content type (1 from html 0 for txt) :