Re: Exchange 2k Server Publishing using MAPI

  • From: "Work" <wit@xxxxxxxxxx>
  • To: "[ISAserver.org Discussion List]" <isalist@xxxxxxxxxxxxx>
  • Date: Thu, 22 Nov 2001 22:37:19 -0500

Microsoft Knowledgebase: Q291000:
http://support.microsoft.com/support/kb/articles/Q291/0/00.ASP


----- Original Message -----
From: "Iain McLaren" <iain.mclaren@xxxxxxxxxxxx>
To: "[ISAserver.org Discussion List]" <isalist@xxxxxxxxxxxxx>
Sent: Tuesday, November 20, 2001 6:00 AM
Subject: [isalist] Exchange 2k Server Publishing using MAPI


> http://www.ISAserver.org
>
>
> I have an Exchange 2000 server published via RPC (MAPI) ISA packet filter
> (secure mail publishing)
> An external Win2k/Outlook Client (using outlook98 or outlook2k) can
> connect to this published Service ok. A Win95 Client running Outlook 2k(or
> Outlook98) cant connect to the same service, when trying to check server
> mailbox name it reports network connection problems are preventing
> connection at this time etc.
> The problem seems to be in the format of the initial MSRPC Bind packet
> issued from the client, ISA accepts the Win2k pakcet and issues a MSRPC
> reply but ignores (or doesn't pass on) the Win95 packet. The only
> differences betweeen the 2 packets are the MSRPC Flags 1=3 on the win2k
> packet and 1=0 on the win95 packet, and MSRPC call id , but i'm assuming
> that to be irrellevant?
>
> Any help or clues would be appreciated.
>
> Iain
>
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