[SASAG] Exchange Spam tools

Kurt Buff kurt.buff at gmail.com
Fri Jul 20 16:03:12 PDT 2007

On 7/20/07, Jason Martin <jhmartin at toger.us> wrote:
> On Fri, Jul 20, 2007 at 01:42:45PM -0700, Donald Plummer wrote:
> > Do you do some kind of SMTP look ahead to find out if the email address
> > actually exists, or maintain 2 user lists?
> I don't actually have Exchange, but it is possible
> to configure postfix to connect to the ultimate destination and
> verify the recipient address, check a LDAP database, or a static
> listing of names.

You certainly can, but it's probably cleaner and safer to export the
desired addresses to the postfix box. That's what I do.

For a good overview/tutorial, see:


Perhaps the best book on Postfix is The Book of Postfix:



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