I have seen solutions for this using Exchange 2007 with Windows Server 2003, but we have Exchange 2007 with Windows Server 2008. I would like to have the default site of https://mail.domain.com redirect to either https://mail.domain.com/owa or https://mail.domain.com/exchange depending on where the client mailbox is located. I'd also like to have a redirect for people who forget to put the "s" on https, so requests for http://mail.domain.com redirects to https://mail.domain.com IIS on Windows Server 2008 seems very different to configure than IIS on Windows Server 2003. Thanks

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Thanks that did it. Also thought I would add ifpeople are following this and don't see the HTTP Redirect option they will need to install it from theRoles and Features area and then close out and re-open the server manager console.

One other related question. In a mixed environment where you are running some mailboxes on Exchange 2003 and some on Exchange 2007, will this redirect only work for Exchange 2007 mailboxes? Since the redirect has to point to the \owa directory I would guess this is the case and this would not work for users still on Exchange 2003?

It depends on how you configure redirection and/or proxy... Read below for more details, but essentially your users would login to 2007 and the server would then send them to login again on 2003 based on their mailbox location. http://msexchangeteam.com/archive/2007/09/04/446918.aspx Overview of Exchange Server 2007 CAS Proxying and Redirection

Yes, I figured that if a client with an Exchange 2003 mailbox were to login to a 2007 CAS and get redirected via thehttps: or /owa or both, they would eventually get redirected back to the Exchange 2003 back end mailbox, but it seems that with the ssl and /owa redirections put in it doesn't work that way. Out of the box without the redirects it does work this way as far as proxy, but with the added redirects I can only get clients who login to 2007 to work since the redirect points to the /owa directory (and doesn't seem to proxy after that for 2003 clients). Hope that makes sense.

it cannot proxy 2003 connections. only redirect. proxy only works on 2007 to 2007.

So take the following scenario: Exchange 2003 environment with a front-end server in place. An Exchange 2007 environment setup in the same organization. We are going to be movingusers over time from Exchange 2003 to Exchange 2007. Is there a way that we can point our webmail address to the new 2007 CAS servers and have OWA work for both Exchange 2007 and Exchange 2003 users? I mean will this work with the redirects in place from up above? Or with the redirects in place can we only service users on Exchange 2007 for OWA since the redirect points people to the /owa directory? I'm trying to find a solution where the CAS servers can service all our clients for OWA during the transition. They are currently used to going to https://webmail.domain.com and not typing in the /exchange or /owa. From what I can see, putting in the redirect kind of takes the option of redirecting for Exchange 2003. Hope that makes sense. Thanks for the help.