RE: client behind ISA access to remote Exchange behind another ISA using MAPI
- From: "Thomas W Shinder" <tshinder@xxxxxxxxxxxxxxxxxx>
- To: "[ISAserver.org Discussion List]" <isalist@xxxxxxxxxxxxx>
- Date: Thu, 6 Mar 2003 19:15:09 -0600
Hi John,
I think if you make the Registry change to fix the GC issue that should
fix things. Note that Outlook 2000 without any service packs works fine.
HTH,
Tom
Thomas W Shinder
www.isaserver.org/shinder
ISA Server and Beyond: http://tinyurl.com/1jq1
Configuring ISA Server: http://tinyurl.com/1llp
-----Original Message-----
From: John Huang [mailto:jun@xxxxxxxxxxxxx]
Sent: Wednesday, March 05, 2003 3:17 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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