LDAP script for Active Directory (also, Wiki)
smf at F2S.COM
Mon Oct 10 18:00:49 IST 2005
On Mon, 2005-10-10 at 09:34 -0700, Chris W. Parker wrote:
> I was just reading through
> omino_etc and to my dismay found out that there is no link to the
> appropriate article where Exchange is concerned.
> However, on
> :postfix:how_to:reject_non_existent_users#ms_exchange there is a link to
> some documentation for Postfix and Exchange that can be applied to
> sendmail too.
> For anyone out there that is using MailScanner as a gateway with
> sendmail in front of Exchange I would be very appreciative of a working
> script to query valid user email addresses.
If you are using Exchange 2003 - then I can thoroughly recommend
milter-ahead instead of directly querying Active Directory.
This is a call-ahead type milter that you can implement on the gateway
which then keeps a cache of the lookups for a configurable number of
days. I prefer this as it's really easy to set-up and has no chance of
bogging down your domain controllers or slowing mail delivery if AD is
See http://www.fsl.com/support/Milter-Ahead-Exchange-Settings.pdf for
details on setting this up.
Hope this helps.
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