Search/Download only Encrypted Emails

Searching an IMAP mailbox for emails that are encrypted and download. Emails are automatically decrypted.

Download Chilkat Java Library

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[])
  {
    CkImap imap = new CkImap();

    boolean success;

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

    //  Connect to an IMAP server.
    success = imap.Connect("www.cknotes.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;
    }

    //  Select an IMAP mailbox
    success = imap.SelectMailbox("Inbox");
    if (success != true) {
        System.out.println(imap.lastErrorText());
        return;
    }

    //  An S/MIME encrypted email should have a content-type
    //  header containing the substring "pkcs7-mime":
    String headerSearch;
    headerSearch = "HEADER Content-Type pkcs7-mime";

    CkMessageSet messageSet;
    boolean fetchUids;
    fetchUids = true;
    messageSet = imap.Search(headerSearch,fetchUids);
    if (messageSet == null ) {
        System.out.println(imap.lastErrorText());
        return;
    }

    //  Download the emails indicated in the messageSet.
    //  The emails are automatically decrypted.
    CkEmailBundle bundle;
    bundle = imap.FetchBundle(messageSet);
    if (bundle == null ) {

        System.out.println(imap.lastErrorText());
        return;
    }

    //  Display some information from each email:
    int i;
    for (i = 0; i <= bundle.get_MessageCount() - 1; i++) {
        CkEmail email;
        email = bundle.GetEmail(i);

        System.out.println(email.getHeaderField("Date"));
        System.out.println(email.subject());
        System.out.println(email.ck_from());

        System.out.println("Received Encrypted: "
             + email.get_ReceivedEncrypted());
        if (email.get_ReceivedEncrypted() == true) {
            System.out.println("Successfully Decrypted: "
                 + email.get_Decrypted());
        }

        System.out.println("Received Signed: "
             + email.get_ReceivedSigned());
        if (email.get_ReceivedSigned() == true) {
            System.out.println("Signature Verified: "
                 + email.get_SignaturesValid());
        }

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

    }

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


  }
}