Need a free SMTP Server to run on Win XP Pro

Hi Experts,

I need a recommendation of a free and complete/full featured SMTP server that runs on Win XP Pro SP2.

I've downloaded from the group ware package CuteFlow and it needs a smtp server. More information can be found here:

This is the smtp server requirement per CuteFlow documentation: "A E-Mail Server that can be connected via SMTP to do the communication to the receivers."

The code below is from the "send mail"  program (notification.send.php).

Thanks much!
// send the EMail	
	$nMax = sizeof($arrRecievers);
	for ($nIndex = 0; $nIndex < $nMax; $nIndex++)
		unset ($arrCurReciever);
		$arrCurReciever[] = $arrRecievers[$nIndex];
		$mail = new htmlMimeMail();
		$mail->setHeader('X-Mailer', 'CuteFlow Document Workflow System');
		$mail->setHeader('Date', date('D, d M y H:i:s O'));
		$result = $mail->send($arrCurReciever, 'smtp');

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Lee W, MVPTechnology and Business Process AdvisorCommented:
IIS should include an SMTP server - have you tried that?

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WadskiIT DirectorCommented:
You can add the SMTP Server that is part of IIS for FREE,

Just go to add/remove programs and select Windows Setup and then tick the boxes within IIS to add it.
IT79637Author Commented:
I have WampServer 2.0 installed.  It uses apachee 2.2.6, php 5.2.5 and mysql 5.0.45.

I'll install IIS and give it a try. Although I am concerned about IIS - localhost listening on port 80.  I hope I can configure IIS http server to a different port and use port 25 for smtp.

However, would someone please recommend a few free SMTP servers.

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Dave HoweSoftware and Hardware EngineerCommented:
I strongly recommend this one:

It was formerly a commercial, enterprise level product (one of the few that supported novell, although it runs well on a windows xp machine) and is solid, full functioned, and minimises to the system tray when you don't want to look at it.

has some mailing list functionality, supports TLS, thousands of mailboxes, and pop3/imap access.
Lee W, MVPTechnology and Business Process AdvisorCommented:
Don't be concerned - IIS web server can easily have it's port changed - IIS isn't a dinky little web server - it's used all over the internet - maybe not as much as Apache, but it's not exactly featureless.

There's nothing wrong with IIS SMTP - you asked for free - it's INCLUDED.  IIS has had fewer vulnerabilities over the year than apache.

I'm sure you could use Sendmail or some other open source program... but if your that set on using open source, why are you using Windows?
Lee W, MVPTechnology and Business Process AdvisorCommented:
Keep in mind, using other SMTP server on Windows will limit your ability to find help for those since most people will be using IIS/SMTP.
Dave HoweSoftware and Hardware EngineerCommented:
For that matter - see if your ISP offers a smarthost, and just configure *that* in the script (unless you need to keep all these emails internal)
Dave HoweSoftware and Hardware EngineerCommented:
leew: ah, humour. most replies support posts for SMTP/IIS seem to start out by recommending "upgrading" to exchange :)
IT79637Author Commented:
Upped points.
IT79637Author Commented:
Allocated points to all who replied.  I thought leew had the most complete answer.  Thanks to all who responded.  Everyones input was valuable to me.

Thanks again.
what is the best smtp server
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