Topic: WAN and 3 MS Exchange boxes

[nickolse]

Hi,

My set is as follows:

I have the HQ office running on 192.168.0.0 network with 2 satelite sites running 192.168.1.0 and 192.168.2.0 respectively.  The SME box is the primary firewall/GW between both the internet as well as the internal networks.  I have added the two extra internal networks to the lcal networks on the SME box, and the networks can communicate fine.

The problem is this.  The main exchange server cannot send any mail to the two satelite servers.  These two servers can both send to the main server, but again, no mail goes to the second and third server.  I thought this might be an exchange issue, so the first exchange server has been reinstalled. (not out of frustration, it was a planned server upgrade) and the original server was removed.  Still, the same issue persists.  The smtp proxy function has been disabled.

I can telnet on port 25 from all, to all the servers, but i fear that there must be some kind of issue stopping proper communication from the primary to the secondary networks via smtp.

This issue only started after SME 7.0 was implemented.  Before, MS ISA filled this role.

I hope this clarifies my issue!.

Please assist as about 300 users are without mail at the moment.

Awaiting anybodys reply!

[CharlieBrady]

The problem is this.  The main exchange server cannot send any mail to the two satelite servers.  

What happens when it tries?

You will need to find someone knowledgable in diagnosing Exchange problems to sort out your problem.

[nickolse]

I am an Exchange administrator of 7 years.  This issue dissapears if I put back the MS ISA server.  The reason for SME is the spam scanning and the better fiewall provided.

Is there no way of just opening port 25 globaly?

[CharlieBrady]

I am an Exchange administrator of 7 years.

Then you should be able to accurately diagnose what the problem is and where it lies.

The reason for SME is the spam scanning and the better fiewall provided.

You haven't said why you have concluded that. You've just said "doesn't work".

Is there no way of just opening port 25 globaly?

Port 25 is open globally.