Sample code for 30+ languages & platforms
Java

POP3 STARTTLS

Demonstrates how to do POP3 STARTTLS.

Chilkat Java Downloads

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;

    // This example requires the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

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

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

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

    // Indicate that we want TLS/SSL.  Also, set the port to 995:
    mailman.put_MailPort(995);
    mailman.put_PopSsl(true);

    CkEmailBundle bundle = new CkEmailBundle();
    boolean keepOnServer = true;
    boolean headersOnly = false;
    // Irrelevent because we are NOT downloading headers-only
    int numBodyLines = 0;
    success = mailman.FetchAll(keepOnServer,headersOnly,numBodyLines,bundle);
    if (success == false) {
        System.out.println(mailman.lastErrorText());
        return;
        }

    CkEmail email = new CkEmail();
    int i = 0;
    while (i < bundle.get_MessageCount()) {
        bundle.EmailAt(i,email);

        // Display the From email address and the subject.
        System.out.println("From: " + email.ck_from());
        System.out.println("Subject: " + email.subject());
        i = i+1;
        }
  }
}