I’ve been struggling trying to get RPC over HTTP working from our main Exchange 2003 server. The box itself is on Server 2003 SP1 and is running SP1 of Exchange as well. The problem is that all RPC tests fail and Outlook constantly talks to our Windows 2000 DC regardless of whatever settings I plug into Outlook, Exchange and IIS.

Last week I hit upon a few interesting posts – it seems that some other administrators were also failing to get this to work on other Windows 2003 SP1 boxes – a factor that they seemed to think was important.

Knowing that downgrading our production email server was out of the question, I’ve started building a test Exchange Front End server running Windows 2003 with only hotfix 831464 installed. I’ve installed Exchange, upgrade to SP1 and enabled Outlook Web Access (webmail).

Except when I https://webmail-test/exchange/ . I get told that “The page must be viewed over a secure channel” and to “Type https:// at the beginning of the address you are attempting to reach and press ENTER.” !

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