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List:       gauntlet-user
Subject:    RE: Gauntlet 5 and MS Exchange
From:       "William VonStorch" <wvonstor () mindspring ! com>
Date:       1999-07-16 21:26:52
[Download RAW message or body]

Take a look at this MS Q article about TCP ports and MS Exchange:

http://support.microsoft.com/support/kb/articles/q176/4/66.asp

Bill

> -----Original Message-----
> From: gauntlet-user@rmsbus.com [mailto:gauntlet-user@rmsbus.com]On
> Behalf Of Yakov Kravets
> Sent: Friday, July 16, 1999 4:11 PM
> To: wvonstor@mindspring.com
> Subject: Re: Gauntlet 5 and MS Exchange
>
>
> "Philip D. Kutzenco" wrote:
> >
> > Folks,
> >
> > We have a Gauntlet version 5 firewall (on BSDI). Folks
> on the inside with
> > Outlook want to connect to MS Exchange servers on the
> outside. What options
> > do I have for enabling access? Is POP the only option
> for that? How does
> > one set that up? The POP proxy seems to be really for
> access to trusted POP
> > servers from untrusted addresses. We'd be doing the opposite.
> >
> > Is there a way to do real Exchange mail through the
> firewall? Public folders?
>
> There was a big discussion on firewall-wizards list about
> allowing DCOM through the firewall and I'm not going to get
> into whether it's secure or not. In my mind it's all
> relative ... But _technicaly_ there is a way to do real
> Exchange mail trough the firewall. Exchange, like most of
> microsoft's services, is built on top of DCE RPC protocol.
> All you have to do is staticaly map Information Store and
> Directory services to static TCP ports on the server and
> allow them through on your firewall. Communication between
> server and client is clear text I beleive, so my want do
> investigate if that something you are willing to deal with.
>
> ygk.
> --
> Yakov Kravets
> Neuberger Berman, LLC
> (212) 476-9218
> ygk@nb.com
>

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