(C++) GMail SMTP port 587 with "less secure" Password Authentication

Send email using GMail's SMTP server on port 587 (SSL via STARTTLS).

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#include <CkMailMan.h>
#include <CkEmail.h>

void ChilkatSample(void)
    {
    // This example assumes the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    CkMailMan mailman;
    bool success;

    // Use the GMail SMTP server
    // This example assumes your GMail account allows for "less secure apps" to use 
    // SMTP username/password authentication.
    // For OAuth2 authentication, see GMail SMTP with OAuth2 Authentication
    mailman.put_SmtpHost("smtp.gmail.com");
    mailman.put_SmtpPort(587);
    mailman.put_StartTLS(true);

    // Set the SMTP login/password.
    mailman.put_SmtpUsername("chilkat.support");
    mailman.put_SmtpPassword("myPassword");

    // Create a new email object
    CkEmail email;

    email.put_Subject("This is a test");
    email.put_Body("This is a test");
    email.put_From("Chilkat Support <chilkat.support@gmail.com>");
    email.AddTo("Chilkat","support@chilkatsoft.com");

    success = mailman.SendEmail(email);
    if (success != true) {
        std::cout << mailman.lastErrorText() << "\r\n";
        return;
    }

    std::cout << "Email sent." << "\r\n";
    }