(C) Create Non-Multipart Email with XML Body that is an Attachment

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Creates an email where the only body is a binary WAV file. The technique used in the example could be applied to other binary files, such as PDF, MS-WORD docs, Excel docs, etc.

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

void ChilkatSample(void)
    {
    BOOL success;
    const char *xmlBody;
    HCkEmail email;
    HCkMailMan mailman;

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

    // The goal of this example is to create an email that has this MIME format,
    // where the body of the email is XML using base64 encoding, 
    // and the Content-Type and Content-Disposition are set as indicated.

    // Date: Wed, 23 Aug 2023 09:01:52 +0200 (CEST)
    // From: joe@example1.com
    // Subject: [v=EMCS.NL][a=NL****][k=****][s=0]
    // To: mary@example2.com
    // MIME-Version: 1.0
    // Content-Type: application/octet-stream; charset=us-ascii; name=6bd8dfe259b3a42c90a28a82b5fc6e77.txt
    // Content-Transfer-Encoding: Base64
    // Content-Disposition: attachment; filename=6bd8dfe259b3a42c90a28a82b5fc6e77.txt
    // Message-Id: <......>
    // 
    // <multi-line base64 encoded XML here>

    success = TRUE;

    xmlBody = "<ie:IE801 xmlns:ie=\"urn:publicid:-:EC:DGTAXUD:EMCS:PHASE4:IE801:V3.01\" xmlns:tms=\"urn:publicid:-:EC:DGTAXUD:EMCS:PHASE4:TMS:V3.01\">....</ie:IE801>";

    email = CkEmail_Create();

    // Add subject, TO, FROM, etc.
    CkEmail_putSubject(email,"[v=EMCS.NL][a=NL****][k=****][s=0]");
    CkEmail_putFrom(email,"joe@example1.com");
    success = CkEmail_AddTo(email,"Mary","mary@example2.com");

    CkEmail_putBody(email,xmlBody);

    CkEmail_AddHeaderField(email,"Content-Transfer-Encoding","Base64");
    CkEmail_AddHeaderField(email,"Content-Type","application/octet-stream; charset=us-ascii; name=6bd8dfe259b3a42c90a28a82b5fc6e77.txt");
    CkEmail_AddHeaderField(email,"Content-Disposition","attachment; filename=6bd8dfe259b3a42c90a28a82b5fc6e77.txt");

    // Your email is ready to send
    mailman = CkMailMan_Create();

    CkMailMan_putSmtpHost(mailman,"smtp.my_mail_server.com");
    CkMailMan_putSmtpUsername(mailman,"myUsername");
    CkMailMan_putSmtpPassword(mailman,"myPassword");
    CkMailMan_putSmtpPort(mailman,465);
    CkMailMan_putSmtpSsl(mailman,TRUE);
    CkMailMan_putStartTLS(mailman,TRUE);

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

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

    printf("Mail Sent!\n");


    CkEmail_Dispose(email);
    CkMailMan_Dispose(mailman);

    }