Quick & Dirty PHP Mail Test Script

mail-test.php

<?php

	/*
	DONT FORGET TO DELETE THIS SCRIPT WHEN FINISHED!
	*/

	ini_set( 'display_errors', 1 );
	error_reporting( E_ALL );
	
	$from = '[email protected]';
	
	/*
	ini_set( 'SMTP', 'smtp.example.com' );
	ini_set( 'SMTP_PORT', 25 );
	ini_set( 'sendmail_from', $from );
	*/
	
	$server = array( 
		'HTTP_HOST', 'SERVER_NAME', 'SERVER_ADDR', 'SERVER_PORT',
 		'SERVER_ADMIN', 'SERVER_SIGNATURE', 'SERVER_SOFTWARE', 
		'REMOTE_ADDR', 'DOCUMENT_ROOT', 'REQUEST_URI', 
		'SCRIPT_NAME', 'SCRIPT_FILENAME',
	);
	
	$to      = ( isset( $_GET['email'] ) ? $_GET['email'] : FALSE );
	$subject = 'Mail Test Successful for ' . $_SERVER['HTTP_HOST'];
	$message = '';
	
	if ( ! $to )
	{
		echo '<strong>Set $_GET[\'email\'].</strong>';
		exit;
	};
	
	foreach ( $server as $s )
	{
		$message .= sprintf( '%s: %s', $s, $_SERVER[$s] ) . PHP_EOL;
	};
	
	$headers = 'From: ' . $from . PHP_EOL 
		 . 'Reply-To: ' . $from . PHP_EOL 
		 . 'X-Mailer: PHP/' . phpversion(); 
	
	if ( isset( $_GET['send'] ) && $_GET['send'] === 'true' )
	{					
		$success = mail( $to, $subject, $message, $headers );
	}
	else
	{
		echo '<strong>Set &quot;<a href="./?email=' . $to . '&send=true">'
		 . './?email=' . $to . '&send=true</a>&quot; to send a test e-mail.</strong>';
	};
	
	if ( isset( $success ) )
	{	
		echo 'E-mail sent to: ' . $to;
		echo '<br />';
		echo 'Successful mail?: <strong ' . ( $success ? 'style="color:green;">YES' : 'style="color:red;">NO' ) . '</strong>';
	}
	else
	{
		echo '<br />';
		echo 'E-mail set as: '.$to;
	};
	
	echo '<hr />';	
	echo '<style>	* { font-family: Helvetica, Arial, sans-serif;  } th { text-align: left; } td { padding: 3px 5px; }	</style>';
	echo '<table>';	
	
	foreach ( $server as $s )
	{
		echo '<tr><th>$_SERVER[\'' . $s . '\']</th><td>' . $_SERVER[$s] . '</td></tr>';
	};
	
	echo '</table>';
	
	if ( isset( $success ) )
	{
		echo '<!--'; 
		var_dump( $success );		
		echo '-->';
	};
?>

Yeah awesome script, I use it like this.

http:///yourhost/mail-test.php?email=[email protected]&send=true

So the above sends an email to this mail tester and you get a response back with the details of your configuration.

how about enabling SMTP authentication?