Re: Publishing two different Exchange Servers on my internal network
- From: "Jim Harrison" <jim@xxxxxxxxxxxx>
- To: "[ISAserver.org Discussion List]" <isalist@xxxxxxxxxxxxx>
- Date: Thu, 29 Apr 2004 08:47:09 -0700
Hiya Joe,
I'm not real clear what "doesn't work well" and what dcomcnfg had to do with
any errors you saw?
I do know that during a send session from you, if your source-IP doesn't match
your MX lookup, many mail servers will drop your
incoming connection.
My mail server does this.
It's a side-effect of the fact that any Windows host (ISA included) will use
the default IP as the source IP when originating any IP
traffic.
Jim Harrison
MCP(NT4, W2K), A+, Network+, PCG
http://www.microsoft.com/isaserver
http://isaserver.org/Jim_Harrison
http://isatools.org
Read the help, books and articles!
----- Original Message -----
From: "cismic" <cismic@xxxxxxx>
To: "[ISAserver.org Discussion List]" <isalist@xxxxxxxxxxxxx>
Sent: Thursday, April 29, 2004 08:27
Subject: [isalist] Re: Publishing two different Exchange Servers on my internal
network
http://www.ISAserver.org
Hi all,
I have 1 exchange server that handles mail for 15 domains.
My setup is as follows:
ISA --> DMZ(MAIL RELAY) --> ISA --> INTERNAL EXCHANGE --> THEN ROUTE TO
ANOTHER EXCHANGE
The domains don't receive a heck of a lot of email and was mainly for
testing but things work quite well.
I used to have two IP address on my external ISA machine. I had one for webs
and one for mail.
That did not work well at all with the SMTP service and then routing to dmz
relay machine. It was almost like the dcomcnfg file did not like the fact
that I had 2 ip address but only 1 listening on port 25. After removing the
2nd ip address and changing all MX records to point to new ip address things
started working great!
Thanks to all those on this list!
Joseph
----- Original Message -----
From: "Jim Harrison" <jim@xxxxxxxxxxxx>
To: "[ISAserver.org Discussion List]" <isalist@xxxxxxxxxxxxx>
Sent: Thursday, April 29, 2004 8:19 AM
Subject: [isalist] Re: Publishing two different Exchange Servers on my
internal network
http://www.ISAserver.org
Two choices:
1. get another external IP
2. use an internal SMTP relay that understands how to route on a per-domain
basis.
Jim Harrison
MCP(NT4, W2K), A+, Network+, PCG
http://www.microsoft.com/isaserver
http://isaserver.org/Jim_Harrison
http://isatools.org
Read the help, books and articles!
----- Original Message -----
From: "Nabil, Ahmed" <anmahmou@xxxxxxxxxx>
To: "[ISAserver.org Discussion List]" <isalist@xxxxxxxxxxxxx>
Sent: Thursday, April 29, 2004 07:32
Subject: [isalist] Publishing two different Exchange Servers on my internal
network
http://www.ISAserver.org
We are currently hosting two Exchange servers, each is representing
different organization. I published the First Exchange fine and
I can see my e-mails from the internet using VPN client.
The problem is when I try to publish the second interface, it didn't accept
this because I have one external IP. How can I get
around this problem to publish the two Exchanges ?
Thanks and have a nice day,
Ahmed
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