Graziano,

You have been asking questions for some time about LDAP. I'm not sure if
anyone has mentioned that LDAP is only one of several possible ways to
authenticate users. In my understanding, alternatives include: -

1       Authentication by the MTA itself - the best and simplest alternative
in most cases?

2       Flat file with specific usernames ([EMAIL PROTECTED]), i.e.
authenticated by ASSP. Simple but tedious to update. Most easily done with a
script to extract the addresses from a list somewhere else

3       Flat file with wildcard domain names (@domain1.tld) , i.e.
"authenticated" by ASSP. Quick and easy, but has the problem that too many
undeliverable messages might be received for non-existent addresses.

4`      LDAP as a mechanism to interface to either a database or an MTA,
i.e. authenticated via some third party mechanism, with LDAP as an
interface. Updating becomes the problem of the 3rd party application. An
example is the internal Windows User DB (Active Directory). LDAP interfacing
is included in Windows Active Directory from W2K onwards. More accurately,
AD is a "native" LDAP server, they say.

You only need LDAP if you can't do any of the first three. From what little
I know of LDAP, it's quite a complex subject to address from scratch, but
not THAT hard. It's relatively easy to interface to some existing LDAP
server. Google!

Kind regards,

William Stucke
ZAnet Internet Services (Pty) Ltd
[EMAIL PROTECTED]
083-308-0700 - WFS
074-333-0109 - Office
086-502-9444 - Fax
http://www.zanet.co.za


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