Delete All IMAP Email

Demonstrates two ways to delete all email in a mailbox on an IMAP server.

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

//  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;
}

//  Turn on session logging:
imap.KeepSessionLog = true;

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

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

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

Chilkat.MessageSet messageSet = null;

//  Get the complete set of Uids for email in the selected mailbox.
messageSet = imap.GetAllUids();
if (messageSet == null ) {
    MessageBox.Show(imap.LastErrorText);
    return;
}

//  Set the Deleted flag for each message.
//  (ExpungeAndClose must be called to finalize the delete.)
success = imap.SetFlags(messageSet,"Deleted",1);
if (success != true) {
    MessageBox.Show(imap.LastErrorText);
    return;
}

//  Alternatively, the Deleted flag may be set for each UID
//  individiually, but this is less efficient:
int i;
int n;
n = messageSet.Count;
for (i = 0; i <= n - 1; i++) {
    success = imap.SetFlag(messageSet.GetId(i),messageSet.HasUids,"Deleted",1);
    if (success != true) {
        MessageBox.Show(imap.LastErrorText);
        return;
    }

}

//  Expunge and close the mailbox.
success = imap.ExpungeAndClose();
if (success != true) {
    MessageBox.Show(imap.LastErrorText);
    return;
}

//  Display the session log.
textBox1.Text += imap.SessionLog + "\r\n";

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