Instant messaging and ISA firewall clients

  • From: test@xxxxxxxxxxxxxxxxx
  • To: exchangelist@xxxxxxxxxxxxx
  • Date: Sat, 13 Apr 2002 03:24:00 -0700

Clients behind an Exchange 2K - ISA server are able to send instant
messages, but cannot receive them from Internet clients.
The internet client gets: "The following message could not be delivered to
all recipients"

I did everything the Q285781 (XCCC: Configuring Exchange 2000 Instant
Messaging Polling and Fixed Ports) says, but it does not give any
recommendations on how to configure the client or server, besides registry
entries. So, I still have the same problem.
Is there any suggestion or any source I can find the explanation.
Thank you
Anton


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