Fetch Oldest/Newest IMAP Email

Emails may be downloaded by sequence number. Assuming the selected mailbox is not empty, the oldest email is at sequence number 1, and the newest email is at sequence number N. The FetchSingle method may be used to download by sequence number.

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Chilkat.Imap imap = new Chilkat.Imap();

bool success;

//  Anything unlocks the component and begins a fully-functional 30-day trial.
success = imap.UnlockComponent("Anything for 30-day trial");
if (success != true) {
    MessageBox.Show(imap.LastErrorText);
    return;
}

//  Connect to an IMAP server.
success = imap.Connect("mail.testemail.net");
if (success != true) {
    MessageBox.Show(imap.LastErrorText);
    return;
}

//  Login
success = imap.Login("***","***");
if (success != true) {
    MessageBox.Show(imap.LastErrorText);
    return;
}

//  Select an IMAP mailbox
success = imap.SelectMailbox("Inbox");
if (success != true) {
    MessageBox.Show(imap.LastErrorText);
    return;
}

//  After selecting a mailbox, the NumMessages property
//  contains the number of emails in the selected mailbox.
int n;
n = imap.NumMessages;

if (n > 0) {

    //  The oldest email is always at sequence number 1.
    bool isUid;
    isUid = false;

    Chilkat.Email oldestEmail = null;
    oldestEmail = imap.FetchSingle(1,isUid);
    if (!(oldestEmail == null )) {

        //  Display the From and Subject
        textBox1.Text += oldestEmail.FromAddress + "\r\n";
        textBox1.Text += oldestEmail.Subject + "\r\n";

        textBox1.Text += "--" + "\r\n";

    }

    //  The newest email is at sequence number N:
    Chilkat.Email newestEmail = null;
    newestEmail = imap.FetchSingle(n,isUid);
    if (!(newestEmail == null )) {

        //  Display the From and Subject
        textBox1.Text += newestEmail.FromAddress + "\r\n";
        textBox1.Text += newestEmail.Subject + "\r\n";

    }

}

//  Disconnect from the IMAP server.
imap.Disconnect();