(Unicode C++) Sending S/MIME Encrypted Email

Sends an encrypted email using the recipient's digital certificate from a .cer file.

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#include <CkMailManW.h>
#include <CkCertW.h>
#include <CkEmailW.h>

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

    // The mailman object is used for sending and receiving email.
    CkMailManW mailman;

    // Set the SMTP server.
    mailman.put_SmtpHost(L"smtp.comcast.net");

    // Load the .cer file into a certificate object.
    // When sending S/MIME encrypted email, it is the recipient's
    // certificate that is used for encryption.  Only the public key
    // is needed to encrypt.  The recipient is the only
    // one possessing the private key, and therefore is the only
    // one able to decrypt.
    CkCertW cert;
    bool success = cert.LoadFromFile(L"cknotes.cer");
    if (success != true) {
        wprintf(L"%s\n",cert.lastErrorText());
        return;
    }

    // Create a new email object
    CkEmailW email;

    email.put_Subject(L"This email is encrypted");
    email.put_Body(L"This is a digitally encrypted mail");
    email.put_From(L"Chilkat Support <support@chilkatsoft.com>");
    success = email.AddTo(L"Chilkat Blog",L"admin@cknotes.com");

    // Indicate that the email is to be sent encrypted.
    email.put_SendEncrypted(true);

    // Specify the certificate to be used for encryption.
    success = email.SetEncryptCert(cert);

    success = mailman.SendEmail(email);
    if (success != true) {
        wprintf(L"%s\n",mailman.lastErrorText());
    }
    else {
        wprintf(L"Mail Sent!\n");
    }
    }