Read POP3 Mail Headers

Reads the header for each email in a POP3 mailbox and display the FROM and SUBJECT header fields.

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[])
  {
    //  The mailman object is used for receiving (POP3)
    //  and sending (SMTP) email.
    CkMailMan mailman = new CkMailMan();

    //  Any string argument automatically begins the 30-day trial.
    boolean success;
    success = mailman.UnlockComponent("30-day trial");
    if (success != true) {
        System.out.println("Component unlock failed");
        return;
    }

    //  Set the POP3 server's hostname
    mailman.put_MailHost("mail.chilkatsoft.com");

    //  Set the POP3 login/password.
    mailman.put_PopUsername("****");
    mailman.put_PopPassword("****");

    CkEmailBundle bundle;
    //  Read mail headers and one line of the body.
    bundle = mailman.GetAllHeaders(1);

    if (bundle == null ) {
        System.out.println(mailman.lastErrorText());
        return;
    }

    int i;
    CkEmail email;
    for (i = 0; i <= bundle.get_MessageCount() - 1; i++) {
        email = bundle.GetEmail(i);

        //  Display the From email address and the subject.
        System.out.println(email.ck_from());
        System.out.println(email.subject() + "\n");

    }


  }
}