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Windows Server Forum / Exchange Server / Design / November 2005Exchange FrontEnd BackEnd Configuration
My company has decided that we are going to deploy exchange 2003. And it is my job to figure out what the best config is for our situation. I've read dozens of articles and blogs and still no way near a suitable solution. Therefore this post: We have a DMZ with it's own AD, let's call that: DOMAINA and let's call our internal network DOMAINB. My first plan was to setup two Exchange servers one acts as a Bridgehead/Relay in the DMZ and one acts as a mailbox server on our internal network. The problem is that the bridgehead can't reach DOMAINB so it can't read the configuration from that AD. I can't believe I'm the only one who's going for this sort of config. Does anyone has any real life experience with these kinds of configs? What's the best plan for setting up such an environment? Thanks in advance - Since you mentioned bridgehead/relay, I'm assuming you're talking SMTP. FEs are commonly setup for HTTP, IMAP and POP3. As far as SMTP's concerned, there's no difference between SMTP on FE or BE. - You can install a SMTP relay in the DMZ, whether part of the DMZ domain or a standalone box. All you need is Windows SMTP service installed on it. - For outbound email from your Exchange, configure a SMTP Connector with address space * and insert this DMZ SMTP host's fqdn/ip address as smarthost. Make sure the DMZ host can resolve internet names (DNS) and has outbound SMTP. - For inbound email, insert A record for DMZ host's public/NATted IP address, and a MX pointing to the A in external DNS, open SMTP from outside to it. Follow KBA 324272 to configure SMTP svc on the DMZ box to relay for your domain(s) and forward to your internal Exchange server as smarthost.  SignatureBharat Suneja MCSE, MCT www.zenprise.com blog: www.suneja.com/blog ----------------------------------------- > My company has decided that we are going to deploy exchange 2003. > And it is my job to figure out what the best config is for our situation. [quoted text clipped - 12 lines] > > Thanks in advance We need that frontend for OWA. So I guess that this frontend should go in the DMZ. But how should this be installed? There's no way to reach DOMAINB. Are there any solutions for that? >- Since you mentioned bridgehead/relay, I'm assuming you're talking SMTP. >FEs are commonly setup for HTTP, IMAP and POP3. As far as SMTP's concerned, [quoted text clipped - 29 lines] >> >> Thanks in advance Is DomainB in DMZ in its own Forest? If yes, installing a FE there will not work for Exchange servers in DomainA, which are in a separate Forest. Exchange Organizations cannot span multiple Forests. If they're in the same Forest, you will need to open the necessary ports in your firewall. http://www.microsoft.com/technet/prodtechnol/exchange/guides/E2k3FrontBack/f9733 398-a21e-4b40-8601-cfb452da82ad.mspx It's not recommended to locate FE Exchange boxes in DMZs. SignatureBharat Suneja MCSE, MCT www.zenprise.com blog: www.suneja.com/blog ----------------------------------- > We need that frontend for OWA. So I guess that this frontend should go in > the DMZ. [quoted text clipped - 35 lines] >>> >>> Thanks in advance |
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