Outlook 2003 Exchange Server Error
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& Marketing Manager GROUP SPONSORED BY EXCLAIMER TECHNOLOGY IN THIS DISCUSSION Microsoft Exchange Server 2010 Join the Community! Creating https://community.spiceworks.com/topic/173632-outlook-2003-cannot-connect-to-exchange your account only takes a few minutes. Join Now Hello all, Having http://www.msexchange.org/blogs/walther/news/exchange-2010-and-outlook-2003-clients-connection-issues-460.html a very odd problem with a particular computer in our company. User can't connect to exchange and when attempting to do so we get the following error message. "The action could not be completed. The connection to the Microsoft Exchange Server is unavailable. Outlook must be online outlook 2003 or connected to complete this action" I've scoured the internet and tried various things... here's what I've done so far. 1) Made sure the registry had keys for RPC 2) Tested and verified that the user can connect to his email through OWA 3) Tested and verified that the user's account can be set up on another computer running outlook 2003 exchange outlook 4) Deleted and created new outlook profile (during this process I get the same error message when clicking "check name"). 5) Completed a system restore to a restore point when this was functioning properly. 6) Attempted to set up my own exchange account on the local admin. This issue has happened in the past and we ended up reformatting the machine to resolve the issue. That's obviously not ideal, even though I do have an image ready to go if it's absolutely necessary (I want to avoid this because the user that uses this machine is extremely picky about the way his computer is set up). I'd really like to resolve the actual issue if possible. Has anyone experienced this issue in the past? Also, I should note that our exchange server is hosted by a third party called LiveOffice and I don't think this is a problem on the server's end as the account works from any other computer, appears to be isolated to the machine. Also a quick google search yielded tons of
a hard time connecting to an Exchange 2010 mailbox using an Outlook 2003 client? Here’s the deal. So as most of you already know Exchange 2010 introduces a new client access service named RPC Client Access. This service lives on the Client Access Server (CAS) and allows MAPI clients (Outlook) to connect to a CAS server just like pretty much all the other Exchange clients do nowadays (with WebDAV deprecated in Exchange 2010, even Entourage clients will need to connect to the CAS). This means that Outlook clients no longer connect directly to an Exchange 2010 Mailbox server. Well, at least not when we’re speaking mailbox access (public folder connections will, after being authenticated by the RPC Client Access service on the CAS, be directed to the Mailbox server). One of the default settings for the RPC Client Access service is that it requires encryption for RPC connections. You can check this setting using the following command: Get-RpcClientAccess | fl This is not an issue if you use Outlook 2007 or Outlook 2010 since these Outlook versions have RPC encryption enabled by default, when you create a new Outlook profile, see below: But guess what? Yes the old Outlook 2003 version behaves differently. You see, when you create a new Outlook 2003 profile, RPC encryption is disabled by default in this client version. This means that if you migrate an Exchange 2003 or 2007 mailbox to Exchange 2010, or try to create a brand new Outlook 2003 profile against an Exchange 2010 mailbox, you won’t be able to connect to the mailbox. After authentication, you will instead Having a hard time connecting to an Exchange 2010 mailbox using an Outlook 2003 client? Here’s the deal. So as most of you already know Exchange 2010 introduces a new client access service n