Access Attached Message (Embedded Email)

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How to access an email embedded within another email (i.e. an attached message).

Chilkat.Email email = new Chilkat.Email();

//  Load an email from a .eml
bool success;
success = email.LoadEml("embeddedEmail.eml");
if (success != true) {
    MessageBox.Show(email.LastErrorText);
    return;
}

//  Display how many attached emails are embedded within
//  this one:
int numAttached;
numAttached = email.NumAttachedMessages;
MessageBox.Show(Convert.ToString(numAttached));

//  Get the 1st attached message.
Chilkat.Email email2 = null;
email2 = email.GetAttachedMessage(0);
if (!(email2 == null )) {

    //  Display the subject, From, and a header field...
    textBox1.Text += email2.Subject + "\r\n";
    textBox1.Text += email2.From + "\r\n";
    textBox1.Text += email2.GetHeaderField("X-SOMETHING") + "\r\n";
}