We are using Exch2000 server with SP1, and using IM. Our Remote users dial
into their ISP and use a VPN Secure Client from Checkpoint to authenticate
and use our internal resources. When doing so, they can log on to IM with no
problems, can send an IM to users on the Exch server, but we try to reply
(behing firewall users) we get the following msg " The following message
could not be delivered to all recipients:
What could be the problem...