RE: Exchange 2000 behind ISA - SMTP oubound blocked ...

  • From: "Jay J. Mobley" <jmobley@xxxxxxxxxx>
  • To: "[ISAserver.org Discussion List]" <isalist@xxxxxxxxxxxxx>
  • Date: Tue, 28 Aug 2001 16:40:19 -0700

Is the rule user- or group-based? If so, secureNAT clients will be
blocked
for a lack of authentication.
Jim Harrison
MCP(2K), A+, Network+, PCG
-----Original Message-----
From: Paul Gee [mailto:paul.gee@xxxxxxxxx]
Sent: Tuesday, August 28, 2001 4:42 PM
To: [ISAserver.org Discussion List]
Subject: [isalist] Exchange 2000 behind ISA - SMTP oubound blocked ...


http://www.ISAserver.org


I have an Exchange 2000 box sat behind my ISA server. It can receive
mail ok but I cannot get it to send. (Cannot connect to external smart
host)
 
I have followed the new SMTP tutorial but am getting no joy !
 
Basically I am trying to test by telneting to port 25 on my ISP's smart
host. I can resolve the smart hosts name FQDN via DNS ok, but the telnet
connection fails.
 
I can telnet ok from behind the ISA server on a machine with the
firewall client installed, and it works ok on the ISA server itself.
 
I created a outbound SMTP protocol rule, and one for DNS, both apply to
any request.
I have disabled the SMTP service on the ISA server.
II have published the Mail server.
 
According to the tutorial, that should be it.
 
It still don't work and I don't know what to do !
 
Regards
Paul Gee 
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