(C) SMTP NTLM Authentication

See more SMTP Examples

Demonstrates how to specify NTLM authentication for sending email via SMTP.

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#include <C_CkMailMan.h>
#include <C_CkEmail.h>

void ChilkatSample(void)
    {
    HCkMailMan mailman;
    BOOL useCurrentWindowsUser;
    HCkEmail email;
    BOOL success;

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

    mailman = CkMailMan_Create();

    // Specify your particular mail server's SMTP settings.
    CkMailMan_putSmtpHost(mailman,"smtp.my_mail_server.com");
    CkMailMan_putSmtpPort(mailman,587);
    CkMailMan_putStartTLS(mailman,TRUE);

    // This assumes you know your SMTP server supports NTLM authentication.
    // To explicitly request NTLM authentication, set the SmtpAuthMethod property = "ntlm".
    CkMailMan_putSmtpAuthMethod(mailman,"ntlm");

    // Note: Normally you should avoid setting the SmtpAuthMethod.
    // SMTP servers tell the connecting client the authentication methods it will accept when the initial connection is made.
    // Chilkat will automatically use this information to select and use the most secure auth method supported by the server.

    useCurrentWindowsUser = TRUE;

    if (useCurrentWindowsUser == TRUE) {
        // If you are running on Windows, and you wish for the NTLM credentials of the current logged-on Windows user to be used,
        // set the username and password to the string "default"
        CkMailMan_putSmtpUsername(mailman,"default");
        CkMailMan_putSmtpPassword(mailman,"default");
    }
    else {
        // Explicitly specify the SMTP username/password
        // The SMTP username is your email account username, which is often your email address.
        CkMailMan_putSmtpUsername(mailman,"your_smtp_username_or_email_address");
        CkMailMan_putSmtpPassword(mailman,"your_password");
    }

    email = CkEmail_Create();

    CkEmail_putSubject(email,"This is a test");
    CkEmail_putBody(email,"This is a test");
    // Don't forget to change this to use your email addresses..
    CkEmail_putFrom(email,"Chilkat Support <support@chilkatsoft.com>");
    success = CkEmail_AddTo(email,"Chilkat Admin","admin@chilkatsoft.com");
    // To add more recipients, call AddTo, AddCC, or AddBcc once per recipient.

    success = CkMailMan_SendEmail(mailman,email);
    if (success != TRUE) {
        printf("%s\n",CkMailMan_lastErrorText(mailman));
        CkMailMan_Dispose(mailman);
        CkEmail_Dispose(email);
        return;
    }

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

    printf("Mail Sent!\n");


    CkMailMan_Dispose(mailman);
    CkEmail_Dispose(email);

    }