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Exchange 2010 Topology

I currently have an  Exchange 2003 environment with one Front End in the DMZ for incoming email and iPhone/OWA access and a back end server on the LAN that holds the mailboxes.

I have installed a Edge Transport server (not a domain member) in the DMZ to receive inbound email. I have installed a 2010 server on the LAN (CAS, MB, HT).

Currently the Edge Transport server recieves our inbound email and the CAS/MB/HT server on the LAN sends email outbound. I have moved one mailbox as a test to the new server.

My question is how does the iPhone access work moving forward? I don't have an ISA server. Do I just permit the firewall to pass iPhone traffic from the WAN to the LAN server? Or does the Edge Transport server hold a role?
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FBCS
Asked:
FBCS
1 Solution
 
Deepak_ExproCommented:
Hi, if you plan to configure Activesync in your environment, then you have to use advanced firewall server.

Microsoft recommend ISA 2006 for Exchange 2010
If you use ISA then you have to create ActiveSync virtual directory for Smartphone activesync.

You can move your test mailbox to any mailbox server, but user should have access to activesync. So that

Smartphone --> Internet --> Firewall --> CASServer --> connect to User Mailbox Server
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FBCSAuthor Commented:
I am using a Sonicwall NSA firewall. The company won't pay for ISA.
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Simon Butler (Sembee)ConsultantCommented:
Edge Server does SMTP email only, nothing else (which is why it is a waste of money for most people). Therefore you will have to point 443 traffic straight through to Exchange 2010 server.

Simon.
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