RE: client behind ISA access to remote Exchange behind another ISA using MAPI
- From: "Steve Moffat" <steve@xxxxxxxxxxxxxxx>
- To: "Isa List" <isalist@xxxxxxxxxxxxx>
- Date: Thu, 6 Mar 2003 01:01:18 -0000
Hi John H
I would imagine, that if it's not a configuration with your isa server,
then it's a problem with the isa server config at your mail hosting
company.
Hi John T,
There are literally hundreds of outsourcing mail servers on the web that
use exchange, and will host all your email services for a few dollars a
month.
Thenks!!
HTH
Steve
Read the books
-----Original Message-----
From: John Tolmachoff [mailto:isalist@xxxxxxxxxxxx]
Sent: Thursday, March 06, 2003 12:50 AM
To: Isa List
Subject: [isalist] RE: client behind ISA access to remote Exchange
behind another ISA using MAPI
http://www.ISAserver.org
This is interesting. See my reply to 307926.
In your case, is a site to site VPN possible? (It would have to be
strictly
regulated.)
In my opinion, Exchange was never designed nor will it function properly
to serve as a mail server for non-local domains. It is the Lexus of
corporate e-mail servers. The key word is corporate.
If you have to have Exchange and you have to outsource, I would
seriously consider a on-site outsourced Exchange server, where it is in
your office but is entirely taken care of by someone else.
I have never heard of Exchange being used for a corporation where the
Exchange server was not within that company.
John Tolmachoff MCSE, CSSA
IT Manager, Network Engineer
RelianceSoft, Inc.
Fullerton, CA 92835
www.reliancesoft.com
> -----Original Message-----
> From: John Huang [mailto:jun@xxxxxxxxxxxxx]
> Sent: Wednesday, March 05, 2003 1:17 PM
> To: [ISAserver.org Discussion List]
> Subject: [isalist] client behind ISA access to remote Exchange behind
another ISA
> using MAPI
>
> http://www.ISAserver.org
>
>
> Hi, Dr. Shinder:
>
> Our LAN is behind a integrated mode ISA. We are using SNAT client for
> LAN. Now we want to use outsourced Exchange, which also secured
> published behind ISA array. I am using Outlook 2002 SP-2 client, try
> to connect using MAPI to the remote Exchange but failed. Someone told
> me installing the lastest Feature Pack 1 but still not working. I
> tested by allowing my ISA wide open to all to try to connect the
> remote Exchange, still failed. Errow message said can not find the
> server and the mailbox name. Using sniffer to analyze the packet find
> that local Outlook client send some request call but not get reply by
> the remote Exchange but ISA, while if not SNAT in DMZ the client can
> get the reply and establish MAPI connection.
>
> After dig out some knowledge base, I found these info:
> http://support.microsoft.com/default.aspx?scid=3Dkb;en-us;307926
> http://support.microsoft.com/default.aspx?scid=kb;EN-US;263293
> http://support.microsoft.com/default.aspx?scid=kb;en-us;154596
>
> Is this mean that we can not use this kind of sevice or setup because
> of the RPC, NAT and Outlook GC? Any suggestion? or the beta 2 version
> of ISA will address this problem?
>
> Thank you very much for your advice.
>
>
> Best regards,
> John Huang
> System Administrator
>
>
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