Connecting to Public Folders using RDO & MAPI

Question

I am trying to connect to my companies Exchange 2003 server using RDO & MAPI which I've never done before. I have found a pretty good site that uses Outlook's Redemption (http://www.dimastr.com/redemption/home.htm) but with all of the examples on the site using VB.NET and me not being great at programming it's a bit difficult to get this working.

So far I have this code

static void ConnectToExchange()
    {
        object oItems;

        //string outLookUser = "My Profile Name";
        string outLookUser = "username@xxx.xxxx";

        string ToEmailAddress = "username@xxxx.com";
        string FromEmailAddress = "username@xxx.com";
        string outLookServer = "xxservernamexx";

        string sMessageBody =
            "\n outLookUser: " + outLookUser +
            "\n outLookServer: " + outLookServer +
            "\n\n";

        RDOSession Session = new RDOSession();
        try
        {                                               

            Session.LogonExchangeMailbox(outLookUser,outLookServer);
            int mailboxCount = Session.Stores.Count;
            string defaultStore = Session.Stores.DefaultStore.Name;

            RDOFolder TestTaxCert = Session.GetFolderFromPath(@"\\Public Folders\All Public Folders\TestTaxCert");


        }
        catch (Exception ex)
        {
            Session = null;

            //System.Web.Mail.SmtpMail.Send(ToEmailAddress, FromEmailAddress, "Error", sMessageBody + " " + ex.Message);

        }
        finally
        {
            if ((Session != null))
            {
                if (Session.LoggedOn)
                {
                    Session.Logoff();
                }
            }
        }

    }
}

My problem is that once the program hits the Session.LogonExchangeMailbox(outLookUser,outLookServer); line, a prompt appears asking for my credentials (username, domain, password) and no matter what information I fed the prompt it denied permission.

SO if someone can help me with that and then also with connecting to the public folders...that'd be greaaat

score 0 · Answer 1 · answered Jul 16 '13 at 22:33

0

Make sure your code is running as the domain user specified in the call to LogonExchangeMailbox. Did you really mean 2003, or is it Exchange 2013?

answered Jul 16 '13 at 22:33

Dmitry Streblechenko

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I really meant Exchange 2003. I've read that there are a number of issues connecting to this b/c it was written for C++ and has very little .NET support. – MaylorTaylor Jul 16 '13 at 22:51
Exchange 2003 is perfectly fine. It really does not care that you are calling it from a .Net code. – Dmitry Streblechenko Jul 17 '13 at 16:40
How do I make sure my code is running as the domain user i'm using in the LogonExchangeMailbox method? – MaylorTaylor Jul 17 '13 at 17:36
You need to log locally to your machine as the domain user who owns the mailbox. In case of a service, you can specify the user identity on the Log On tab in the service properties dialog. – Dmitry Streblechenko Jul 17 '13 at 17:43

Connecting to Public Folders using RDO & MAPI

1 Answers1