Simple script to test sending an email to an email address using PHP

email-test.php

<?php

/* DO NOT LEAVE THIS LIVE ON A SERVER */

$sendemail = true; // Simple switch to enable or disable sending to be safe

if (isset($_POST['email']) && $sendemail) 
{

	$to = $_POST['email'];
	$from = $_POST['email_from'];
	$subject = $_POST['subject'];
	$message = $_POST['message'];

	$headers   = array();
	$headers[] = "MIME-Version: 1.0";
	$headers[] = "Content-type: text/plain; charset=iso-8859-1";
	$headers[] = "From: ".$from." <".$from.">";
	$headers[] = "Reply-To: Recipient Name <".$to.">";
	$headers[] = "X-Mailer: PHP/".phpversion();
	
	
	if (mail($to, $subject, $message, implode("\r\n", $headers)))
	{
		echo '<span style="color: green;">Email Sent</span>';
	}
	else
	{
		echo '<span style="color: red;">Problem sending email</span>';
	}
}

if (!$sendemail) 
{
	echo '<span style="color: red;">Send mail disabled</span>';
}
else
{
?>
	<br/><br/>
	<form method="post">
		Send Email To: <input name="email" type="text" /><br /><br/>
		Send Email From: <input name="email_from" type="text" value="admin@whatever.co.uk"/><br /><br/>
		Subject: <input name="subject" type="text" value="Test subject <?php echo date('d-m-y h:i');?>"/><br /><br/>
		Message:<br /><br/>
		<textarea name="message" rows="15" cols="40">Test email message</textarea><br /><br/>
		<input type="submit" value="Submit" />
	</form>
<?php
}

?>