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What?? Outlook 2003 and Outlook 2007 wont connect to my new Exchange 2010 install?? READ THIS.....

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I was recently took a “Early Monday” call from a distraught customer, having just installed a nice new Exchange 2010 server they could not get any of their outlook clients to connect to their migrated mailboxes?!

By default, Exchange 2010 requires Encryption for RPC client access. Unless you specifically turn this off, Outlook 2003 clients (and Outlook 2007 clients that do not have this enabled) will simply not connect to Exchange. Enabling Encryption was not a default setting for Outlook 2003!

It should be mentioned that MIcrosoft have documented this well, prior to RTM. Unfortunately, there are some discoverability issues with the article, and that can be found here

Hope this helps some of you, feedback welcome

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