(Java) Subscribe to Mailboxes and List Subscribed Mailboxes

Demonstrates how to list subscribed mailboxes, and unsubscribe/subscribe to a mailbox.

Chilkat Java Downloads Java Libs for Windows, MacOS, Linux, Alpine Linux, Solaris Java Libs for Android

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[])
  {
    // This example assumes the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    CkImap imap = new CkImap();

    // Connect to an IMAP server.
    // Use TLS
    imap.put_Ssl(true);
    imap.put_Port(993);
    boolean success = imap.Connect("imap.someMailServer.com");
    if (success != true) {
        System.out.println(imap.lastErrorText());
        return;
        }

    // Login
    success = imap.Login("myLogin","myPassword");
    if (success != true) {
        System.out.println(imap.lastErrorText());
        return;
        }

    // First examine the already subscribed mailboxes.
    String refName = "";
    String wildcardedMailbox = "*";

    // Alternatively, the ListMailboxes method can be called to list all mailboxes (both subscribed and unsubscribed).
    CkMailboxes mboxes = imap.ListSubscribed(refName,wildcardedMailbox);
    if (imap.get_LastMethodSuccess() != true) {
        System.out.println(imap.lastErrorText());
        return;
        }

    int i;
    for (i = 0; i <= mboxes.get_Count() - 1; i++) {
        System.out.println(mboxes.getName(i));
        }

    System.out.println("----");

    // Sample output.

    // INBOX
    // INBOX/recent
    // INBOX/misc
    // INBOX/misc/solutions
    // ...
    // Outbox
    // Deleted Items
    // Sent Items
    // Drafts
    // Junk E-mail
    // Trash
    // Sent
    // Templates

    // Let's unsubscribe to "INBOX/misc/solutions".
    success = imap.Unsubscribe("INBOX/misc/solutions");
    if (success != true) {
        System.out.println(imap.lastErrorText());
        return;
        }

    // Get the list of subscribed mailboxes again to verify that "INBOX/misc/solutions" is missing.
    mboxes = imap.ListSubscribed("","INBOX/misc*");
    if (imap.get_LastMethodSuccess() != true) {
        System.out.println(imap.lastErrorText());
        return;
        }

    for (i = 0; i <= mboxes.get_Count() - 1; i++) {
        System.out.println(mboxes.getName(i));
        }

    System.out.println("----");

    // Re-subscribe to "INBOX/misc/solutions".
    success = imap.Subscribe("INBOX/misc/solutions");
    if (success != true) {
        System.out.println(imap.lastErrorText());
        return;
        }

    // Get the list of subscribed mailboxes again to verify that "INBOX/misc/solutions" is back in the list.
    mboxes = imap.ListSubscribed("","INBOX/misc*");
    if (imap.get_LastMethodSuccess() != true) {
        System.out.println(imap.lastErrorText());
        return;
        }

    for (i = 0; i <= mboxes.get_Count() - 1; i++) {
        System.out.println(mboxes.getName(i));
        }

    System.out.println("----");

    // Disconnect from the IMAP server.
    success = imap.Disconnect();
  }
}