Reading e-mail without Outlook app open

Question

Thats what I am using to read e-mail using C#:

outLookApp.NewMailEx += new ApplicationEvents_11_NewMailExEventHandler(outLookApp_NewMailEx);
            Outl         


        

Answer 1

This is kind of an old question, but I am going to answer it since I struggled with the same issue for a long time and the previous answers on this page did not really help me.

I had to write a program and use outlook to send an email on different machines with different UAC-levels and this is what I came up with after a long time.

using Outlook = Microsoft.Office.Interop.Outlook;

// Create the Outlook application.
Outlook.Application oApp = null;

// Check whether there is an Outlook process running.
int outlookRunning = Process.GetProcessesByName("OUTLOOK").Length;
if (outlookRunning > 0)
{
    // If so, use the GetActiveObject method to obtain the process and cast it to an Application object.
    try
    {
        oApp = Marshal.GetActiveObject("Outlook.Application") as Outlook.Application;
    }
    catch (Exception)
    {
        oApp = Activator.CreateInstance(Type.GetTypeFromProgID("Outlook.Application")) as Outlook.Application;
    }
    finally
    {
        // At this point we must kill Outlook (since outlook was started by user on a higher prio level than this current application)
        // kill Outlook (otherwise it will only work if UAC is disabled)
        // this is really a kind of last resort
        Process[] workers = Process.GetProcessesByName("OUTLOOk");
        foreach (Process worker in workers)
        {
            worker.Kill();
            worker.WaitForExit();
            worker.Dispose();
        }
    }
}
else
{
    // If not, create a new instance of Outlook and log on to the default profile.
    oApp = new Outlook.Application();
    Outlook.NameSpace nameSpace = oApp.GetNamespace("MAPI");
    try
    {
        // use default profile and DO NOT pop up a window
        // on some pc bill gates fails to login without the popup, then we must pop up and lets use choose profile and allow access
        nameSpace.Logon("", "", false, Missing.Value);
    }
    catch (Exception)
    {
        // use default profile and DO pop up a window
        nameSpace.Logon("", "", true, true);
    }
    nameSpace = null;
}

// Done, now you can do what ever you want with the oApp, like creating a message and send it
// Create a new mail item.
Outlook.MailItem oMsg = (Outlook.MailItem)oApp.CreateItem(Outlook.OlItemType.olMailItem);