Send HTML Email with Embedded Image

Download: Chilkat .NET Assemblies

C# source code sample showing how to send an HTML email with images embedded within the HTML.

bool success = false;

// Create a mailman object for sending email.
Chilkat.MailMan mailman = new Chilkat.MailMan();

// Any string argument automatically begins the 30-day trial.
mailman.UnlockComponent("30-day trial");

// Set the SMTP server.
mailman.SmtpHost = "smtp.earthlink.net";

// Create an email object
Chilkat.Email email = new Chilkat.Email();

// Add an embedded image to the HTML email.
string cid = email.AddRelatedFile("dude.gif");
if (cid == null)
{
	MessageBox.Show(email.LastErrorText);
	return;
}

// Update the HTML to reference the image using the CID
string htmlBody = "<html><body>Embedded Image:<br><img src=\"cid:IMAGE_CID\"></body></html>";
htmlBody = htmlBody.Replace("IMAGE_CID",cid);

// Set the basic email stuff: HTML body, subject, "from", "to"
email.SetHtmlBody(htmlBody);
email.Subject = "This is an HTML email with an embedded image.";
email.AddTo("Chilkat Support","support@chilkatsoft.com");
email.From = "Programmer <programmer@chilkatsoft.com>";

success = mailman.SendEmail(email);
if (!success)
{
	MessageBox.Show(mailman.LastErrorText);
	return;
}

Important: The download for this example does not contain the ChilkatDotNet.dll which
must be downloaded and installed separately at http://www.chilkatsoft.com/downloads.asp.
Once installed, add a reference to the DLL in the project by following the instructions at
http://www.example-code.com/vbdotnet/step2.asp