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.

Downloads:

MS Windows Visual C/C++ Libraries

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BlackBerry QNX C++ Libraries

#include <CkMailMan.h>

void ChilkatSample(void)
    {
    //  The mailman object is used for sending and receiving email.
    CkMailMan mailman;

    //  Any string argument automatically begins the 30-day trial.
    bool success;
    success = mailman.UnlockComponent("30-day trial");
    if (success != true) {
        printf("%s\n",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) {
        printf("%s\n",mailman.lastErrorText());
        return;
    }

    const char * strCharset;
    strCharset = "ansi";

    bool bEncodeBase64;

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

    const char * strResponse;

    bEncodeBase64 = false;
    strResponse = mailman.smtpSendRawCommand("CPWD",strCharset,bEncodeBase64);
    if (strResponse == 0 ) {
        printf("%s\n",mailman.lastErrorText());
        return;
    }

    //  Expecting a 334 response...
    if (mailman.get_LastSmtpStatus() != 334) {
        printf("%s\n",strResponse);
        return;
    }

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

    //  Send the existing login:
    strResponse = mailman.smtpSendRawCommand("mySmtpLogin",strCharset,bEncodeBase64);
    if (strResponse == 0 ) {
        printf("%s\n",mailman.lastErrorText());
        return;
    }

    //  Expecting a 334 response...
    if (mailman.get_LastSmtpStatus() != 334) {
        printf("%s\n",strResponse);
        return;
    }

    //  Send the existing password:
    strResponse = mailman.smtpSendRawCommand("mySmtpPassword",strCharset,bEncodeBase64);
    if (strResponse == 0 ) {
        printf("%s\n",mailman.lastErrorText());
        return;
    }

    //  Expecting a 334 response...
    if (mailman.get_LastSmtpStatus() != 334) {
        printf("%s\n",strResponse);
        return;
    }

    //  Send the new password:
    strResponse = mailman.smtpSendRawCommand("myNewSmtpPassword",strCharset,bEncodeBase64);
    if (strResponse == 0 ) {
        printf("%s\n",mailman.lastErrorText());
        return;
    }

    //  Expecting a 250 response...
    if (mailman.get_LastSmtpStatus() != 250) {
        printf("%s\n",strResponse);
        return;
    }

    printf("SMTP password changed!\n");

    success = mailman.CloseSmtpConnection();
    if (success != true) {
        printf("Connection to SMTP server not closed cleanly.\n");
    }


    }