how do i send emails via ms outlook from my windows application

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.NET2.0

C#

.NET

I want to send emails from my windows application through ms outlook. The problem I am facing is that, i need to have outlook open before the mails can be sent. Is there a way i can send the mails regardless of whether ms outlook is running or not? my code is show below:

exceptionhandling validator = new exceptionhandling();
try
{
    OutLook.Application outlookObj = new OutLook.Application();
    OutLook.MailItem Mail = (OutLook.MailItem)outlookObj.CreateItem(OutLook.OlItemType.olMailItem);

    if (cbTo.Text == "")
    {
        MessageBox.Show("Please enter receipient's email address", "Forward Applicant", MessageBoxButtons.OK, MessageBoxIcon.Question);

        cbTo.Focus();
        return;
    }
    validator.IsEmail(cbTo.Text);

    if (cbCopy.Text != "")
    {
        validator.IsEmail(cbCopy.Text);
    }

    if (tbSubject.Text == "")
    {
        DialogResult rlst = MessageBox.Show("Do you want to send this email without a subject", "Forward Applicant", MessageBoxButtons.YesNo, MessageBoxIcon.Question);
        if (rlst == DialogResult.No)
        {
            tbSubject.Focus();
            return;
        }
    }
    validator.IsAlphaNumeric(tbSubject.Text);
    if (rtbMsg.Text == "")
    {
        DialogResult rlst = MessageBox.Show("Do you want to send an empty email", "Forward Applicant", MessageBoxButtons.YesNo, MessageBoxIcon.Question);
        if (rlst == DialogResult.No)
        {
            rtbMsg.Focus();
            return;
        }
    }

    validator.IsAlphaNumeric(rtbMsg.Text);

    Mail.To = cbTo.Text;
    Mail.CC = cbCopy.Text;
    Mail.Subject = tbSubject.Text;
    Mail.Body = rtbMsg.Text;

    if (tbAttchmnt.Text != "")
    {
        Mail.Attachments.Add(tbAttchmnt.Text, (int)OutLook.OlAttachmentType.olByValue, (int)Mail.Body.Length + 1, "Attached File");
    }

    Mail.Send();
    MessageBox.Show("Applicant has been forwarded", "Forward Applicant", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
catch (ArgumentException)
{
    DialogResult rslt = MessageBox.Show("Please a valid email address", "Email Problem", MessageBoxButtons.OK, MessageBoxIcon.Error);
    if (rslt == DialogResult.OK)
    {
        //cbTo.Text = "";
        cbTo.Focus();
    }
}


catch (FormatException)
{
    DialogResult rslt = MessageBox.Show("Please enter only alphanumeric characters in subject and message body", "Email Problem", MessageBoxButtons.OK, MessageBoxIcon.Error);
    if (rslt == DialogResult.OK)
    {
        tbSubject.Focus();
    }
}
catch (Exception ex)
{
    MessageBox.Show(ex.ToString());
}