Using SmtpSendRawCommand to Change Password

Demonstrates how to use the SmtpSendRawCommand method to change the SMTP user account's password for an SMTP server that supports the non-standard CPWD command.

Note: The SmtpSendRawCommand method is not yet released. To get a pre-release, send email to support@chilkatsoft.com.

 Chilkat Java Library Downloads for Windows, Linux, and MAC OS X

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 sending and receiving 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(mailman.lastErrorText());
        return;
    }

    //  Set the SMTP server.
    mailman.put_SmtpHost("smtp.chilkatsoft.com");

    //  Set the SMTP login/password (if required)
    mailman.put_SmtpUsername("myUsername");
    mailman.put_SmtpPassword("myPassword");

    //  Connect and authenticate:
    success = mailman.OpenSmtpConnection();
    if (success != true) {
        System.out.println(mailman.lastErrorText());
        return;
    }

    String strCharset;
    strCharset = "ansi";

    boolean bEncodeBase64;

    //  Send the CPWD command and get the response.
    //  Do not include a trailing CRLF (carriage-return line-feed) in the command string.

    String strResponse;

    bEncodeBase64 = boolean;
    strResponse = mailman.smtpSendRawCommand("CPWD",strCharset,bEncodeBase64);
    if (strResponse == null ) {
        System.out.println(mailman.lastErrorText());
        return;
    }

    //  Expecting a 334 response...
    if (mailman.get_LastSmtpStatus() != 334) {
        System.out.println(strResponse);
        return;
    }

    //  Now send the existing login/password, base64-encoded:
    bEncodeBase64 = boolean;

    //  Send the existing login:
    strResponse = mailman.smtpSendRawCommand("mySmtpLogin",strCharset,bEncodeBase64);
    if (strResponse == null ) {
        System.out.println(mailman.lastErrorText());
        return;
    }

    //  Expecting a 334 response...
    if (mailman.get_LastSmtpStatus() != 334) {
        System.out.println(strResponse);
        return;
    }

    //  Send the existing password:
    strResponse = mailman.smtpSendRawCommand("mySmtpPassword",strCharset,bEncodeBase64);
    if (strResponse == null ) {
        System.out.println(mailman.lastErrorText());
        return;
    }

    //  Expecting a 334 response...
    if (mailman.get_LastSmtpStatus() != 334) {
        System.out.println(strResponse);
        return;
    }

    //  Send the new password:
    strResponse = mailman.smtpSendRawCommand("myNewSmtpPassword",strCharset,bEncodeBase64);
    if (strResponse == null ) {
        System.out.println(mailman.lastErrorText());
        return;
    }

    //  Expecting a 250 response...
    if (mailman.get_LastSmtpStatus() != 250) {
        System.out.println(strResponse);
        return;
    }

    System.out.println("SMTP password changed!");

    success = mailman.CloseSmtpConnection();
    if (success != true) {
        System.out.println("Connection to SMTP server not closed cleanly.");
    }


  }
}