Create Auto-Response Email from formmail.php form

Is there a way to modify this formmail.php so that an auto-response is delivered to the web user filling out the form (to the email they provided) -- and of course, to process the form and send it to  the 'recipient' address?  The auto-response would just be to notify the user that the email has been received and that the company will be with them shortly.

It's going to be hosted on Mosso.

The download link is on this guy's blog (or see code):
http://himmdesign.com/blog/formmail.php-for-mosso-cloud-hosting
<?php
/* Copyright (c) 2002 Eli Sand */
 
	########################################################################
	#                                                                      #
	#                      PHP FormMail v2.0 20030305                      #
	#                                                                      #
	########################################################################
	#
	# Settings
	#
 
	# Initialize variables
	#
	$auth = NULL;
	$deny = NULL;
	$must = NULL;
	$post = NULL;
	$http = NULL;
	$form = NULL;
	$list = NULL;
 
	# Fix for pre PHP 4.1.x versions
	#
	if (!isset($_POST)) {
		$_POST = &$HTTP_POST_VARS;
	}
	if (!isset($_SERVER)) {
		$_SERVER = &$HTTP_SERVER_VARS;
	}
	if (!function_exists('array_key_exists')) {
		function array_key_exists($key, $array) {return in_array($key, array_keys($array)) ? true : false;}
	}
 
	# Fix for magic quotes when enabled
	#
	if (get_magic_quotes_gpc()) {
		foreach ($_POST as $key => $value) {
			$_POST["$key"] = stripslashes($value);
		}
	}
 
	# Detect any Windows operating system
	#
	if (strstr(php_uname(), 'Windows')) {
		$IS_WINDOWS = TRUE;
	}
 
	########################################################################
	#                                                                      #
	#                      USER CONFIGURABLE SETTINGS                      #
	#                                                                      #
	########################################################################
 
	# Authorized email address masks that can be used as the recipient
	#
	$auth = "user@domain.com";
 
	# Authorize all email addresses to the current domain
	#
	# If you want strict email account authorization, comment this out and
	# the script will only authorize the masks in the list defined above.
	#
	$auth .= " , *@" . get_domain($_SERVER['SERVER_NAME']);
 
	# Email address masks that will be rejected if in the email field
	#
	$deny = "nobody@*, anonymous@*, postmaster@*";
 
	# The following allow you to set some default settings
	#
	# These are commented out by default and when used, either override or
	# append to any values.  This allows you to ensure that hackers don't
	# post their own values to certain fields, making you miss out on
	# important data that you want to ensure is included in the email.
	#
	#$must['required']                = "env_report";
	#$must['env_report']              = "REMOTE_ADDR";
	#$must['redirect']                = "http://my.domain.com/ok.html";
	#$must['error_redirect']          = "http://my.domain.com/error.html";
	#$must['missing_fields_redirect'] = "http://my.domain.com/missing.html";
 
	#
	########################################################################
 
	########################################################################
	#                                                                      #
	#                 DO NOT EDIT ANYTHING PAST THIS POINT                 #
	#                                                                      #
	########################################################################
 
	########################################################################
	#
	# Functions
	#
 
	# Trim leading and trailing white space from array values
	#
	function array_trim(&$value, $key) {
		$value = trim($value);
	}
 
	# Return the top level domain of a hostname
	#
	function get_domain($string) {
		if (eregi('\.?([a-zA-Z0-9\-]+\.?[a-zA-Z0-9\-]+)$', $string, $values)) {
			return $values[1];
		}
 
		return NULL;
	}
 
	# Show an error message to the user
	#
	function error_msg($error, $required = FALSE) {
		global $post;
 
		if (!empty($post['missing_fields_redirect']) && $required) {
			header('Location: ' . $post['missing_fields_redirect']);
		}
		elseif (!empty($post['error_redirect'])) {
			header('Location: ' . $post['error_redirect']);
		}
		else {
			echo "<html>\r\n";
			echo "\t<head>\r\n";
			echo "\t\t<title>Form Error</title>\r\n";
			echo "\t\t<style type=\"text/css\">* {font-family: \"Verdana\", \"Arial\", \"Helvetica\", monospace;}</style>\r\n";
			echo "\t</head>\r\n";
			echo "\t<body>\r\n";
			echo "\t\t<p>${error}</p>\r\n\t\t<p><small>&laquo; <a href=\"javascript: history.back();\">go back</a></small></p>\r\n";
			echo "\t</body>\r\n";
			echo "</html>\r\n";
		}
 
		exit();
	}
 
	# Basic pattern matching on an entire array
	#
	function pattern_grep($input, $array) {
		foreach ($array as $value) {
			$value = addcslashes($value, '^.[]$()|{}\\');
			$value = str_replace('*', '.*', $value);
			$value = str_replace('?', '.?', $value);
			$value = str_replace('+', '.+', $value);
 
			if (eregi('^' . $value . '$', $input)) {
				return TRUE;
			}
		}
 
		return FALSE;
	}
 
	#
	########################################################################
 
	########################################################################
	#
	# Main
	#
 
	# Check to make sure the info was posted
	#
	if ($_SERVER['REQUEST_METHOD'] == 'POST') {
 
		$post = array(
			'recipient'			=> $_POST['recipient'],
			'email'				=> $_POST['email'],
			'subject'			=> $_POST['subject'],
			'realname'			=> $_POST['realname'],
			'required'			=> $_POST['required'],
			'env_report'			=> $_POST['env_report'],
			'sort'				=> $_POST['sort'],
			'redirect'			=> $_POST['redirect'],
			'error_redirect'		=> $_POST['error_redirect'],
			'missing_fields_redirect'	=> $_POST['missing_fields_redirect']
		);
 
		$http = array(
			'REMOTE_USER'			=> $_SERVER['REMOTE_USER'],
			'REMOTE_ADDR'			=> $_SERVER['REMOTE_ADDR'],
			'HTTP_USER_AGENT'		=> $_SERVER['HTTP_USER_AGENT']
		);
 
		if (isset($must['required'])) {
			$post['required']			= $must['required'] . ',' . $_POST['required'];
		}
		if (isset($must['env_report'])) {
			$post['env_report']			= $must['env_report'] . ',' . $_POST['env_report'];
		}
		if (isset($must['redirect'])) {
			$post['redirect']			= $must['redirect'];
		}
		if (isset($must['error_redirect'])) {
			$post['error_redirect']			= $must['error_redirect'];
		}
		if (isset($must['missing_fields_redirect'])) {
			$post['missing_fields_redirect']	= $must['missing_fields_redirect'];
		}
 
		if (($auth = explode(',', $auth))) {
			array_walk($auth, 'array_trim');
		}
		if (($deny = explode(',', $deny))) {
			array_walk($deny, 'array_trim');
		}
 
		# Check for missing required fields
		#
		if ((!empty($post['required'])) && ($list = explode(',', $post['required']))) {
			$list[] = 'recipient';
			$list[] = 'email';
 
			array_walk($list, 'array_trim');
 
			foreach ($list as $value) {
				if (!empty($value) && empty($_POST["$value"])) {
					error_msg("You have left a required field blank.", TRUE);
				}
			}
		}
 
		# Check the email addresses submitted
		#
		if (pattern_grep($post['email'], $deny)) {
			error_msg("You have specified a banned email address.");
		}
		if (!eregi('^([a-zA-Z0-9\.\_\-]+)\@((([a-zA-Z0-9\-]+)\.)+([a-zA-Z]+))$', $post['email'])) {
			error_msg("You have specified an invalid email address.");
		}
		if (!$IS_WINDOWS) {
			if (!getmxrr(get_domain($post['email']), $mxhost)) {
				error_msg("You have no mail exchange records for your email address.");
			}
		}
 
		# Check if the recipients email address is authorized
		#
		if ((!empty($post['recipient'])) && ($list = explode(',', $post['recipient']))) {
			array_walk($list, 'array_trim');
 
			foreach ($list as $value) {
				if (!eregi('^([a-zA-Z0-9\.\_\-]+)\@((([a-zA-Z0-9\-]+)\.)+([a-zA-Z]+))$', $value)) {
					error_msg("The recipients email address is invalid.");
				}
				if (!pattern_grep($value, $auth)) {
					error_msg("The recipients email address is unauthorized.");
				}
			}
		}
		else {
			error_msg("There was an unknown error while checking the recipients email address.");
		}
 
		# Sort the fields
		#
		if ((!empty($post['sort'])) && ($list = explode(',', $post['sort']))) {
			array_walk($list, 'array_trim');
 
			foreach ($list as $value) {
				$form["$value"] = $_POST["$value"];
			}
		}
		else {
			$form = $_POST;
		}
 
		# Create the message
		#
		$subject = empty($post['subject']) ? "Online form" : "Online form: " . $post['subject'];
 
		$message = "Submitted by: " . $post['realname'] . " <" . $post['email'] . "> on " . date('l, F jS, Y @ g:i:s a (O)') . "\r\n\r\n";
 
		if (!empty($post['env_report'])) {
			if (($list = explode(',', $post['env_report']))) {
				$message .= "Client Variables\r\n";
				$message .= "----------------\r\n\r\n";
 
				array_walk($list, 'array_trim');
 
				foreach ($list as $value) {
					if (array_key_exists($value, $http)) {
						$message .= "${value}:\r\n" . $http["$value"] . "\r\n\r\n";
					}
				}
			}
		}
 
		$message .= "Online Form Fields\r\n";
		$message .= "------------------\r\n\r\n";
 
		foreach ($form as $key => $value) {
			if (!array_key_exists($key, $post)) {
				$message .= "${key}:\r\n${value}\r\n\r\n";
			}
		}
 
		# Send out the email
		#
		if (mail($post['recipient'], $subject, $message, "From: " . $post['email'] . "\r\nReply-To: " . $post['email'] ."nX-Mailer: PHP FormMail","-f".$post['recipient'])) {
 
			if (!empty($post['redirect'])) {
				header('Location: ' . $post['redirect']);
			}
			else {
				echo "<html>\r\n";
				echo "\t<head>\r\n";
				echo "\t\t<title>Thank you</title>\r\n";
				echo "\t\t<style type=\"text/css\">* {font-family: \"Verdana\", \"Arial\", \"Helvetica\", monospace;}</style>\r\n";
				echo "\t</head>\r\n";
				echo "\t<body>\r\n";
				echo "\t\t<p>Thank you for filling out the form.</p>\r\n\t\t<p><small>&laquo; <a href=\"javascript: history.back();\">go back</a></small></p>\r\n";
				echo "\t</body>\r\n";
				echo "</html>\r\n";
			}
		}
		else {
			error_msg("There was an unknown error while sending email.");
		}
	}
	else {
		error_msg("Invalid request method used.");
	}
 
	#
	########################################################################
?>

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jazzviolinAsked:
Who is Participating?
 
digital0iced0Commented:
Just go all the way to the bottom and send another email.  Like this:

Look for this line below:
mail($post['email'],"We received your message","blahblahblah","From: youremail@domain.com");
	# Send out the email
		#
		if (mail($post['recipient'], $subject, $message, "From: " . $post['email'] . "\r\nReply-To: " . $post['email'] ."nX-Mailer: PHP FormMail","-f".$post['recipient'])) {
 
mail($post['email'],"We received your message","blahblahblah","From: youremail@domain.com");
			if (!empty($post['redirect'])) {
				header('Location: ' . $post['redirect']);
			}
			else {
				echo "<html>\r\n";
				echo "\t<head>\r\n";
				echo "\t\t<title>Thank you</title>\r\n";
				echo "\t\t<style type=\"text/css\">* {font-family: \"Verdana\", \"Arial\", \"Helvetica\", monospace;}</style>\r\n";
				echo "\t</head>\r\n";
				echo "\t<body>\r\n";
				echo "\t\t<p>Thank you for filling out the form.</p>\r\n\t\t<p><small>&laquo; <a href=\"javascript: history.back();\">go back</a></small></p>\r\n";
				echo "\t</body>\r\n";
				echo "</html>\r\n";
			}
		}
		else {
			error_msg("There was an unknown error while sending email.");
		}
	}
	else {
		error_msg("Invalid request method used.");
	}
 
	#
	########################################################################
?>

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