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

  • From: "Jim Harrison" <jim@xxxxxxxxxxxx>
  • To: "[ISAserver.org Discussion List]" <isalist@xxxxxxxxxxxxx>
  • Date: Tue, 28 Aug 2001 17:13:10 -0700

What is showing in the FW or IP logs on the ISA?
It sounds like the Exch server is not a secureNAT client if you have to have 
the FW client installed and enabled to connect through the ISA.
Check this out...
http://www.isaserver.org/shinder/tutorials/secure_nat_client.htm
http://www.isaserver.org/shinder/tutorials/publishing_a_mail_Server_with_isa_server.htm

Jim Harrison
MCP(2K), A+, Network+, PCG

  ----- Original Message ----- 
  From: Paul Gee 
  To: [ISAserver.org Discussion List] 
  Sent: Tuesday, August 28, 2001 4:42 PM
  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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