Re: WIndows 2003 SMTP

  • From: Danny <nocmonkey@xxxxxxxxx>
  • To: "[ExchangeList]" <exchangelist@xxxxxxxxxxxxx>
  • Date: Tue, 8 Feb 2005 12:42:43 -0500

On Tue, 8 Feb 2005 09:36:07 -0700, Deb <deb.l.pearson@xxxxxxxxxxxxxxxxxx> wrote:
> I'm trying hard to read up on the semantics of Windows 2003 SMTP.  What
> I'm finding is a lot of products that overlay Windows - why?  Why does
> Windows need additional products?  Is Windows not good enough on its own?

The IIS 4.0, 5.0, and 6.0 SMTP service is a very simple MTA.  If all
you need is a simple MTA, then obviously it will do the job for you.

What is a simple MTA? In my opinion, it's one that is:

-Primarily configured through a GUI in Windows with check boxes and
radio buttons
-Has a limited configuration in comparision to Postfix, Sendmail,
qmail, Exim, etc.
-Has limited customization "    "
-Has basic RFC compliance
-Does not support extensive add-ons (For example:
-Limited content and connection filtering

In other words, it was designed as an MTA, and it does just that.  All
of these add-on's go beyond the conventional role of an MTA - to
transfer email between servers.

Personally, the IIS 6.0 SMTP service is great for internal SMTP
communication, however, I prefer to have Postfix as my Internet facing
SMTP MTA server/firewall/gateway. With this configuration, not only do
I not have to worry about security patches on my Internet accessible
services, but I also have an almost infinite level of configuration


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