Delete a Bundle of POP3 Messages

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Demonstrates the Chilkat MailMan.DeleteBundle method, which deletes POP3 messages using the UIDLs stored in the X-UIDL headers of the Email objects in an EmailBundle. An email without an X-UIDL header is skipped. This example fetches all messages and deletes them.

Background: DeleteBundle is the batch version of DeleteEmail: it marks every message in a downloaded bundle for deletion in one call. A typical "download and clear the mailbox" workflow is to fetch all messages, process them, then delete the whole bundle. Because a bundle can be filtered or built selectively, you can also delete just the subset you no longer need. The deletions commit when the POP3 session ends.

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bool success = false;

//  Demonstrates the MailMan.DeleteBundle method, which deletes POP3 messages using the UIDLs
//  stored in the X-UIDL headers of the Email objects in an EmailBundle.  An email without an
//  X-UIDL header is skipped.

Chilkat.MailMan mailman = new Chilkat.MailMan();

//  Configure the POP3 server connection.
mailman.MailHost = "pop.example.com";
mailman.MailPort = 995;
mailman.PopSsl = true;
mailman.PopUsername = "user@example.com";
mailman.PopPassword = "myPassword";

//  Fetch all messages (headers are enough; each carries an X-UIDL header).
Chilkat.EmailBundle bundle = new Chilkat.EmailBundle();

success = mailman.FetchAll(true,true,0,bundle);
if (success == false) {
    Debug.WriteLine(mailman.LastErrorText);
    return;
}

//  Delete every message in the bundle.
success = mailman.DeleteBundle(bundle);
if (success == false) {
    Debug.WriteLine(mailman.LastErrorText);
    return;
}

//  Unless the ImmediateDelete property is set to true, the messages are only marked for
//  deletion.  End the POP3 session (which sends the QUIT command) to commit the deletions.
success = mailman.Pop3EndSession();
if (success == false) {
    Debug.WriteLine(mailman.LastErrorText);
    return;
}

Debug.WriteLine("Deleted " + Convert.ToString(bundle.MessageCount) + " messages from the POP3 server.");

//  Note: Explicitly connecting/authenticating is optional.  Chilkat MailMan automatically
//  connects and authenticates -- using the property settings above -- whenever a server
//  operation requires it.  Calling the explicit connect/authenticate methods can still be
//  helpful to determine whether a failure occurs while connecting or while authenticating.