Yes. Try it out yourself; setting up an OE client is trivial.

----- Original Message -----
From: "John Matteson" <[EMAIL PROTECTED]>
To: "Exchange Discussions" <[EMAIL PROTECTED]>
Sent: Wednesday, January 30, 2002 1:52 PM
Subject: RE: SMTP/IMC Connector relay restrictions


> SMTP is the only protocol we use site to site, nary an X.400 or site
> connector in the whole ORG (well, maybe one or two, but none on machines
> that I worry about on a daily basis).
>
> Yep, it's all 5.5 (sorry for not putting that bit of trivia in).
>
> The site addressing tab only effects Exchange users, this is understood.
> What about users outside of Exchange? The little sendmail box sitting in
> some dusty corner that a die-hard *nix user won't give up. That would have
> to be taken care of on the connections tab -> Accept connections , by only
> accepting Authenticated connections. Would the "Clients can only submit if
> authentication account matches submission address" box allow our infamous
> POP3/IMAP4 clients to submit mail (everyone that would be using the IMC to
> relay would be homed on this server, only one server in the site)?
>
> Sorry for asking so many admin 101 questions, but the documentation just
> isn't very definitive and I'm trying to get what's left of my pickled
> herring brain wrapped around this before starting on the hardware side of
> things. Planning, planning, planning.
>
> Thanks again.
>
> John Matteson; Exchange Manager
> Geac Corporate Infrastructure Systems and Standards
> (404) 239 - 2981
> My toys! My toys! I can't do this job without my toys!
>
> -----Original Message-----
> From: Daniel Chenault [mailto:[EMAIL PROTECTED]]
> Sent: Wednesday, January 30, 2002 11:13 AM
> To: Exchange Discussions
> Subject: Re: SMTP/IMC Connector relay restrictions
>
> If you're on 5.5 and using site connectors other servers won't connect to
> this box using SMTP anyway. There is a way to allow users to use this
> connector as a relay but there's no way to detect forged headers; once the
> user is authenticated and/or his IP is filtered he can send anything he
> wants.
>
> The scope will only matter for Exchange traffic and this comes back to
> whether you're using the MTA or the SMTP connectors for site connectivity.
> Within a site it is all RPC (again, talking 5.5).
>
> ----- Original Message -----
> From: "John Matteson" <[EMAIL PROTECTED]>
> To: "Exchange Discussions" <[EMAIL PROTECTED]>
> Sent: Wednesday, January 30, 2002 10:05 AM
> Subject: SMTP/IMC Connector relay restrictions
>
> > Good morning to everyone:
> >
> > I've looked in the Connectivity guide and the archive of last years
> > messages, but I still need some guidance on an issue that maybe, some of
> you
> > have run into.
> >
> > My boss wants to limit the use of a site's IMC to just that site,
> > but also wants to prevent users from relaying messages with forged
headers
> > through the IMC.
> >
> > Can this be done?
> >
> > We plan on setting the address scope to just the site and not using
> > DNS to deliver mail, but have all mail go to a particular "upline"
server
> > for routing and delivery. We also want to allow only other Exchange
> servers
> > to connect to this IMC, which can be done via the Routing Restrictions
tab
> > (there is only a few servers that would need to connect to this machine
> > anyway).
> >
> > But here comes a kink, if a user needs to use a POP3/IMAP4 client,
> > do all these security measures turn into mush? Discussion?
> >
> > John Matteson; Exchange Manager
> > Geac Corporate Infrastructure Systems and Standards
> > (404) 239 - 2981
> > My toys! My toys! I can't do this job without my toys!
>
> _________________________________________________________________
> List posting FAQ:       http://www.swinc.com/resource/exch_faq.htm
> Archives:               http://www.swynk.com/sitesearch/search.asp
> To unsubscribe:         mailto:[EMAIL PROTECTED]
> Exchange List admin:    [EMAIL PROTECTED]
>

_________________________________________________________________
List posting FAQ:       http://www.swinc.com/resource/exch_faq.htm
Archives:               http://www.swynk.com/sitesearch/search.asp
To unsubscribe:         mailto:[EMAIL PROTECTED]
Exchange List admin:    [EMAIL PROTECTED]

Reply via email to