RE: Exchange 2000 Issue inside ISA Firewall

  • From: "David Haam" <DavidH@xxxxxxxxxxxx>
  • To: "[ISAserver.org Discussion List]" <isalist@xxxxxxxxxxxxx>
  • Date: Tue, 5 Feb 2002 09:04:51 -0800

It is most likely that you haven't set the ISA server to be in your IP
routing stream (in a simple network, ISA needs to be your default
gateway).

This configuration is needed because server publishing (for inbound
SMTP) uses SecureNAT, and for SecureNAT to work properly, the ISA server
must be upstream in the IP routing path out to the internet.

David

-----Original Message-----
From: W. Colter Bowman [mailto:colter@xxxxxxxxxxxx] 
Sent: Tuesday, February 05, 2002 8:45 AM
To: [ISAserver.org Discussion List]
Subject: [isalist] RE: Exchange 2000 Issue inside ISA Firewall


http://www.ISAserver.org


Yes I have enabled all filters and publishes.

Colter Bowman
MCSE, ASE, MCP+I
Atom Consulting
colter@xxxxxxxxxxxxxxxxxx
p. 972-395-7455
f. 972-395-7485


-----Original Message-----
From: Gabriel Zabal [mailto:gabriel@xxxxxxxxxxx] 
Sent: Monday, February 04, 2002 2:48 PM
To: [ISAserver.org Discussion List]
Subject: [isalist] RE: Exchange 2000 Issue inside ISA Firewall

http://www.ISAserver.org


Did you publish the SMTP server on the ISA ?
Have you enabled the SMTP filters on ISA ?


Gabriel Zabal
gabriel@xxxxxxxxxxx


----- Original Message -----
From: "Christopher j Burns" <burnsc@xxxxxxxxxx>
To: "[ISAserver.org Discussion List]" <isalist@xxxxxxxxxxxxx>
Sent: Monday, February 04, 2002 12:30 PM
Subject: [isalist] RE: Exchange 2000 Issue inside ISA Firewall


> http://www.ISAserver.org
>
>
>   I am having very simular problem, and haven't found the answer yet.
I
> setup my old email server again behind the ISA server and it runs
fine.
I'm
> currently leaving it up, so the company has email. I'm a bit in over
my
head
> here, but if I do find a fix, I'll let you know.
>
> -----Original Message-----
> From: W. Colter Bowman [mailto:colter@xxxxxxxxxxxx]
> Sent: Monday, February 04, 2002 10:02 AM
> To: [ISAserver.org Discussion List]
> Subject: [isalist] Exchange 2000 Issue inside ISA Firewall
>
>
> http://www.ISAserver.org
>
>
>
> I have an Exchange 2000 server on an internal NAT address inside the
ISA
> Firewall.  I can get the Web Access to work, and I can even send mail,

> but  I can't receive email.  Has anyone dealt with this issue before.
>
> Sincerely,
>
> Colter Bowman
> MCSE, ASE, MCP+I
> Atom Consulting
> colter@xxxxxxxxxxxxxxxxxx
> p. 972-395-7455
> f. 972-395-7485
>
>
>
>
>
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