Check this link out:

http://www.arrayservices.com/projects/Exchange-HOWTO/html/book1.html

It's not Exchange compatible, but it probably has similar functionality.
I wouldn't know I've had very little exposure to Exchange. 

The project uses sendmail and ldap for email and directory services.
Both sendmail and ldap can 'cluster'.


Tim

On Sat, Oct 21, 2000 at 01:07:28AM -0500, Austad, Jay wrote:
> Is this just a plugin so that Microsoft LookOut! users can just point their
> mail program at the samba box for an exchange server?  
> 
> The protocol that exchange uses between it and it's mail clients is a
> firewall administrators nightmare.  It uses like 3 or 4 different ports,
> both UDP and TCP, and uses RPC (so you have to edit the registry on the
> exchange server to bind the rpc ports to 2 specific ports).  Looks like MS
> is finally starting to think about the firewall nightmares they create,
> win2k uses port 445/tcp for drive/folder sharing now.  It still opens the
> old ones, but you don't need them, it's just for backwards compatibility
> with nt and 9x.
> 
> I wish they would fix that horrid protocol, then I wish someone would come
> out with a decent exchange clone for unix, with clustering and all that fun
> stuff.  Set it up once and let it run...
> 
> Jay
> 
> -----Original Message-----
> From: Kelly Black [mailto:blackk100 at hotmail.com]
> Sent: Saturday, October 21, 2000 12:59 AM
> To: tclug-list at mn-linux.org
> Subject: Re: [TCLUG:22973] Samba Exchange Plugins
> 
> 
> Right. But does any code exist?  It would be fun to torture an NT server 
> running Exchange.
> 
> Kelly Black
> 
> 
> >From: Scott Dier <dieman at ringworld.org>
> >Reply-To: tclug-list at mn-linux.org
> >CC: tclug-list at mn-linux.org
> >Subject: Re: [TCLUG:22973] Samba Exchange Plugins
> >Date: Sat, 21 Oct 2000 00:29:17 -0500
> >
> >Thats because they dont exist.
> >
> >You have been reading a developers list, this was in refrence to a
> >roadmap for future revisions of samba(-tng).
> >
> >* Kelly Black <blackk100 at hotmail.com> [001021 00:06]:
> > > Does anyone know where this Exchange Plugin for the Samba code can be 
> >found?
> > > Sounds like it would be fun to play with.  I heard about it in the 
> >latest
> > > Samba Newsletter, but could not find it anywhere.
> > >
> > > http://kt.linuxcare.com/samba/latest.epl
> > >
> > > The reference was...
> > >
> > > Note that I've not included Exchange plugins here. I think I would 
> >consider
> > > that to be a separete project (beyond this scope).
> > >
> > > Is this Samba vaporware, or am I just mis-reading this.
> > >
> > > Kelly Black
> > > (I need to get new e-mail if MS is moving this free mail crap to W2K)
> > > 
> >_________________________________________________________________________
> > > Get Your Private, Free E-mail from MSN Hotmail at 
> >http://www.hotmail.com.
> > >
> > > Share information about yourself, create your own public profile at
> > > http://profiles.msn.com.
> > >
> > >
> > > ---------------------------------------------------------------------
> > > To unsubscribe, e-mail: tclug-list-unsubscribe at mn-linux.org
> > > For additional commands, e-mail: tclug-list-help at mn-linux.org
> > >
> >
> >--
> >Scott Dier <dieman at ringworld.org> #nicnac at efnet
> >http://www.ringworld.org/  finger:dieman at destiny.ringworld.org
> >
> ><CmdrTaco:#kuro5hin> SLSAHDOT IS ALWAYS NEWS FOR NERDS.
> ><< attach3 >>
> >---------------------------------------------------------------------
> >To unsubscribe, e-mail: tclug-list-unsubscribe at mn-linux.org
> >For additional commands, e-mail: tclug-list-help at mn-linux.org
> 
> _________________________________________________________________________
> Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com.
> 
> Share information about yourself, create your own public profile at 
> http://profiles.msn.com.
> 
> 
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: tclug-list-unsubscribe at mn-linux.org
> For additional commands, e-mail: tclug-list-help at mn-linux.org
> 
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: tclug-list-unsubscribe at mn-linux.org
> For additional commands, e-mail: tclug-list-help at mn-linux.org

---------------------------------------------------------------------
To unsubscribe, e-mail: tclug-list-unsubscribe at mn-linux.org
For additional commands, e-mail: tclug-list-help at mn-linux.org