(.NET Core C#) Send HTML Email with Image Downloaded from URL

Demonstrates how to compose an HTML email with an embedded image where the image data is downloaded from a URL.

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

// First download the image we'll be adding to the HTML "img" tag.
Chilkat.BinData bdJpg = new Chilkat.BinData();
Chilkat.Http http = new Chilkat.Http();
bool success = http.QuickGetBd("https://www.chilkatsoft.com/images/starfish.jpg",bdJpg);
if (success == false) {
    Debug.WriteLine(http.LastErrorText);
    return;
}

Chilkat.MailMan mailman = new Chilkat.MailMan();

// Use your SMTP server..
mailman.SmtpHost = "smtp.yourserver.com";
mailman.SmtpPort = 587;
mailman.StartTLS = true;

// Set the SMTP login/password
mailman.SmtpUsername = "my_login";
mailman.SmtpPassword = "my_password";

// Create an HTML email.
Chilkat.Email email = new Chilkat.Email();
email.Subject = "HTML Email with Image";
email.From = "Dave <somebody@mydomain.com>";
email.AddTo("Chilkat","info@chilkatsoft.com");

string html = "<html><body><p>This is an HTML email with an embedded image.</p><p><img src=\"starfish.jpg\" /></p></body></html>";
email.SetHtmlBody(html);

// Note: The "starfish.jpg" here must match the name in the "img" tag's "src" attribute in the HTML above.
success = email.AddRelatedBd2(bdJpg,"starfish.jpg");
if (success == false) {
    Debug.WriteLine(email.LastErrorText);
    return;
}

email.SaveEml("qa_output/out.eml");

// success = mailman.SendEmail(email);
// if (success == ckfalse) {
//     println mailman.LastErrorText;
//     return;
// }
// 
// ignore = mailman.CloseSmtpConnection();

Debug.WriteLine("Success.");