If something freaks out with OWA, the problem could be on the back-end server, in which case rebooting the front-end would likely solve nothing.
A front-end server is not necessarily "your SMTP gateway", or bridgehead. An Exchange server may be a front-end server, a bridgehead server, neither, or both. The two functions can be considered to be completely independent functions. Further, a SMTP relay server doesn't need to be an Exchange server at all; the Windows SMTP service provides this function adequately. This is not to say that your recommendation is wrong, but that it's a business decision. There are a number of factors that should be considered, e.g., current server load, number of mailboxes, number of users using Internet features (like RPC over HTTP), and number of Exchange servers in the site. One size does not fit all. Ed Crowley MCSE+Internet MVP Freelance E-Mail Philosopher Protecting the world from PSTs and Bricked Backups!T -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Evan Mann Sent: Thursday, March 03, 2005 6:00 PM To: Exchange Discussions Subject: RE: FE BE with ISA, do we need the FE? Yes, use the Front End. I have ISA in an internalized DMZ (behind a PIX), and I still have a FE server. OWA and Exchange over HTTP can put good load on a server. It's unnecessary load to be put on your BE servers with your stores. In addition, if something freaks out with OWA or Exchange over HTTP, you can reboot a FE server without causing your stores to go down and people with LAN side direct Exchange connections to have their Outlooks crash or freeze up because it has lost Exchange connection. Your FE box will be your SMTP gateway for all inbound and outbound mail talking with the outside world. It's gives you a permieter like zone for first defense AV scanning and provides lots of extra protection that is well worth the cost of the hardware and another Exchange license IMO. -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Boyd, Nathan Sent: Thursday, March 03, 2005 7:21 PM To: Exchange Discussions Subject: RE: FE BE with ISA, do we need the FE? We were going to put ISA in the DMZ, but moved it to the internal network to provide two functions: 1. Web Caching 2. OWA Publishing Since the ISA server is now internal, do you think it is worth intsalling the FE server as well? Thanks, Nathan -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Ed Crowley [MVP] Sent: Thursday, March 03, 2005 3:59 PM To: Exchange Discussions Subject: RE: FE BE with ISA, do we need the FE? I would certainly put an ISA Server into a DMZ instead of an Exchange front-end server. Beyond that, I'm not sure what you're asking. Ed Crowley MCSE+Internet MVP Freelance E-Mail Philosopher Protecting the world from PSTs and Bricked Backups!T -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Boyd, Nathan Sent: Thursday, March 03, 2005 3:22 PM To: Exchange Discussions Subject: FE BE with ISA, do we need the FE? We are migrating a single site Exchange 5.5 to 2003 in co-existence, with an already established Native AD. Our original design was to have ISA installed in the DMZ, behind a firewall, secure publishing OWA and configured to a 2003 internal FE OWA server, that would also replace the old Exchange 5.5 Internet Message Connection. Since then we have had to use our ISA server internally to replace an old Proxy server. Therefore I would be interested if you guys think it is still worth configuring a FE server in this scenario. The benefits as I see them are: Future Scalability, we could move the ISA box back to the DMZ (if we purchase BlueCoat) Single Namespace, if we move ISA to DMZ and for ISA to publish from, The FE box can provide the Internet Mail Flow to our Mail Gateway, thus freeing performance for the Exchange DBs. Thanks, Nathan _________________________________________________________________ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Web Interface: http://intm-dl.sparklist.com/read/?forum=exchange To subscribe: http://e-newsletters.internet.com/discussionlists.html/ To unsubscribe send a blank email to [EMAIL PROTECTED] Exchange List admin: [EMAIL PROTECTED] To unsubscribe via postal mail, please contact us at: Jupitermedia Corp. 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