Java

Delete a Bundle of POP3 Messages

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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Java

import com.chilkatsoft.*;

public class ChilkatExample {

  static {
    try {
        System.loadLibrary("chilkat");
    } catch (UnsatisfiedLinkError e) {
      System.err.println("Native code library failed to load.\n" + e);
      System.exit(1);
    }
  }

  public static void main(String argv[])
  {
    boolean 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.

    CkMailMan mailman = new CkMailMan();

    //  Configure the POP3 server connection.
    mailman.put_MailHost("pop.example.com");
    mailman.put_MailPort(995);
    mailman.put_PopSsl(true);
    mailman.put_PopUsername("user@example.com");
    mailman.put_PopPassword("myPassword");

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

    success = mailman.FetchAll(true,true,0,bundle);
    if (success == false) {
        System.out.println(mailman.lastErrorText());
        return;
        }

    //  Delete every message in the bundle.
    success = mailman.DeleteBundle(bundle);
    if (success == false) {
        System.out.println(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) {
        System.out.println(mailman.lastErrorText());
        return;
        }

    System.out.println("Deleted " + bundle.get_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.
  }
}