Can I set up Outlook Web Access without a front-end Exchange server?

Tags:
Exchange 2003
IIS
Outlook
Outlook Web Access
OWA
Windows Server 2003
I am trying to set up Outlook Web Access (OWA) for our external users. However, so far, I am only able to use OWA internally. I am working with Windows Server 2003, Exchange Server 2003 and Microsoft Internet Information Services (IIS) 6.0. I have one back-end Exchange server in my organization and I am unable to install a front-end Exchange server. Is it possible to set up OWA with only the back-end Exchange server?

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yes, you would have to setup an internet DNS name like mail.companyname.com and external IP address that points to your firewall, or router’s NAT address that is translated to your internal address in the Network Address Translation section of the router configuration.

Then setup a rule on your router that if an https connection comes in from that address to port forward it to your exchange server. You probablt already have similar rules for port 25 (SMTP) if you are delivering external mail directly to your exchange server without a intermediary spam filter or antivirus server.

Essentially, your exchange server is doing BOTH roles of the front end server and the backend server. This is perfectly acceptable in smaller installations.

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