Problem with alternate mail function using smtp

My webhost has disabled mail() because of spam, and so they gave us this alternate function using SMTP authentication. It is as follows:
<?php
/* * * * * * * * * * * * * * SEND EMAIL FUNCTIONS * * * * * * * * * * * * * */

//Authenticate Send - 21st March 2005
//This will send an email using auth smtp and output a log array
//logArray - connection,

function authSendEmail($from, $namefrom, $to, $nameto, $subject, $message)
{
//SMTP + SERVER DETAILS
/* * * * CONFIGURATION START * * * */
$smtpServer = "mail.server.com";
$port = "25";
$timeout = "30";
$username = "smtpusername";
$password = "smtppassword";
$localhost = "localhost";
$newLine = "\r\n";
/* * * * CONFIGURATION END * * * * */

//Connect to the host on the specified port
$smtpConnect = fsockopen($smtpServer, $port, $errno, $errstr, $timeout);
$smtpResponse = fgets($smtpConnect, 515);
if(empty($smtpConnect))
{
$output = "Failed to connect: $smtpResponse";
return $output;
}
else
{
$logArray['connection'] = "Connected: $smtpResponse";
}

//Request Auth Login
fputs($smtpConnect,"AUTH LOGIN" . $newLine);
$smtpResponse = fgets($smtpConnect, 515);
$logArray['authrequest'] = "$smtpResponse";

//Send username
fputs($smtpConnect, base64_encode($username) . $newLine);
$smtpResponse = fgets($smtpConnect, 515);
$logArray['authusername'] = "$smtpResponse";

//Send password
fputs($smtpConnect, base64_encode($password) . $newLine);
$smtpResponse = fgets($smtpConnect, 515);
$logArray['authpassword'] = "$smtpResponse";

//Say Hello to SMTP
fputs($smtpConnect, "HELO $localhost" . $newLine);
$smtpResponse = fgets($smtpConnect, 515);
$logArray['heloresponse'] = "$smtpResponse";

//Email From
fputs($smtpConnect, "MAIL FROM: $from" . $newLine);
$smtpResponse = fgets($smtpConnect, 515);
$logArray['mailfromresponse'] = "$smtpResponse";

//Email To
fputs($smtpConnect, "RCPT TO: $to" . $newLine);
$smtpResponse = fgets($smtpConnect, 515);
$logArray['mailtoresponse'] = "$smtpResponse";

//The Email
fputs($smtpConnect, "DATA" . $newLine);
$smtpResponse = fgets($smtpConnect, 515);
$logArray['data1response'] = "$smtpResponse";

//Construct Headers
$headers = "MIME-Version: 1.0" . $newLine;
$headers .= "Content-type: text/html; charset=iso-8859-1" . $newLine;
$headers .= "To: $nameto <$to>" . $newLine;
$headers .= "From: $namefrom <$from>" . $newLine;

fputs($smtpConnect, "To: $to\nFrom: $from\nSubject: $subject\n$headers\n\n$message\n.\n");
$smtpResponse = fgets($smtpConnect, 515);
$logArray['data2response'] = "$smtpResponse";

// Say Bye to SMTP
fputs($smtpConnect,"QUIT" . $newLine);
$smtpResponse = fgets($smtpConnect, 515);
$logArray['quitresponse'] = "$smtpResponse";
}
?>
I have that included in the page with the following type of function:
<?php
$to = "post@example.com";
$nameto = "Who To";
$from = "post@example.com";
$namefrom = "Who From";
$subject = "Hello World Again!";
$message = "World, Hello!";
authSendEmail($from, $namefrom, $to, $nameto, $subject, $message);
?>
When I run that, I get no errors, but no email is recieved...

I'm thinking I need the first script before AND after the second one...is that right?

Spam filter wouldn't be catching it, so its not that...

Did my host mess up the code, or will that code just not work?

It is really difficult to second guess what could be the cause of the problem without being able to test the script on the server.

In any case, I would suggest that you use PHPMailer. It is open source and I have used it in the past...and was quite impressed with it.

You can download PHPMailer from here:

http://phpmailer.sourceforge.net/

In any case, let's know if that does not work for you.

Cheers,
Ess

Thanks..
looks like they just installed phpmailer and it works great. :D

But what I don't understand is i can use mail() to send emails via a form, but not just mail() by itself..