Thanks for the responses so far - I have also been kicked for not mentioning that there is a Juniper server in the equation to which OWA is published.
So OWA goes through the Juniper appliance in another dmz and does not touch the ISA dmz. Still the same responses? Regards, Mark Parris Base IT Ltd Active Directory Consultancy Tel +44(0)7801 690596 -----Original Message----- From: "Mark Parris" <[EMAIL PROTECTED]> Date: Tue, 5 Dec 2006 16:41:30 To:"ActiveDir.org" <[email protected]> Subject: [ActiveDir] OT: Exchange Design Question A friend of mine has asked me to ask the group the following Exchange related question. An Exchange 2003 environment that has been upgraded from Exchange 2000 needs to have SMTP reconfigured for outbound mail. There are two proposals on the table but they are not sure of the best approach. 1 Exchange Frontend/Backend configuration with both servers on the internal network and an ISA server in the perimeter network publishing internal SMTP to the internet or in this case messagelabs or 2 Exchange Frontend/Backend configuration with both servers on the internal network and an SMTP server in the DMZ relaying to messagelabs Messagelabs host the MX records and cleanses most viruses out of the emails but may change in the future though there is no current managment thinking to do so. Given these two scenarios which one would most people choose and if so why? The environment is approx 2000 users and there are eight sites and the chosen SMTP configuration will be repeated in another site for resilience. Many thanks as always, Regards, Mark Parris Base IT Ltd Active Directory Consultancy Tel +44(0)7801 690596 [EMAIL PROTECTED] šŠV«r¯yÊ&ý§-Š÷�Š¹šŠVœ¶+Þv*è®
