[TriLUG] sendmail & ldap > exchange howto?

[Paul G. Szabady]

Here I go, answering my own questions again.

http://www.mimedefang.org/kwiki/index.cgi?Exchange2Access

Thanks for pointing me in the right direction.  This works exactly as I
wanted/needed!

-- 
Paul
@ Thy Service

> I'm using mimedefang for clamav, rbls, and spamassassin.  I didn't realize
> it could do this as well.  Do you have any references?
>
> --
> Paul
> @ Thy Service
>
>> mimedefang will do this and a bunch more.
>>
>> Matt P.
>>
>> On Wed, February 8, 2006 6:12 pm, Paul G. Szabady wrote:
>>> Folks,
>>>
>>> I'm running a RHEL 4.2 server w/sendmail (8.13) as a mail gateway.  I
>>> currently use a mailertable entry to forward email to an exchange
>>> server
>>> after some basic spam, av, and rbl filters.  The problem I'm facing is
>>> all
>>> the spam that gets by it which is destined for ficticious users gets
>>> bounced back to the gateway server.  (I'm not rejecting or discarding
>>> spam, just marking it.)  I'm getting 350 +/- NDA bounces a day!  I
>>> believe
>>> I can use Sendmail's built-in ability to perform LDAP queries for
>>> valid
>>> users (a.k.a. smtp addresses) in the active directory / exchange
>>> environment.  If I understand it correctly, this query takes place
>>> during
>>> the smtp layer and will bounce the email for unknown users immediately
>>> (from the gateway/linux server, rather than the current situation
>>> which
>>> lets the email into the exchange store and attempt to send a NDA to
>>> the
>>> sender, which is now my mail gateway.
>>>
>>> I've been looking around for a HOWTO, but can't seem to find one.
>>> Does
>>> anyone have any suggestions on where I might find a simple HOWTO?  I
>>> dread
>>> the thought of having to dig into the bowels of ldap to figure it if
>>> someone's already documented it.  ;(
>>>
>>> Thanks in advance!
>>>
>>> --
>>> Paul
>>> @ Thy Service
>>>
>>>
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>>
>>
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>
>