(Node.js) Embed Image in HTML Email

Demonstrates how to create and send an HTML email with an embedded image.

Install Chilkat for Node.js and Electron using npm at

Chilkat npm packages for Node.js
Chilkat npm packages for Electron
on Windows, Linux, MacOS

var os = require('os');
if (os.platform() == 'win32') {  
  var chilkat = require('@chilkat/ck-node23-win64'); 
} else if (os.platform() == 'linux') {
    if (os.arch() == 'arm') {
        var chilkat = require('@chilkat/ck-node23-linux-arm');
    } else if (os.arch() == 'arm64') {
        var chilkat = require('@chilkat/ck-node23-linux-arm64');
    } else {
        var chilkat = require('@chilkat/ck-node23-linux-x64');
    }
} else if (os.platform() == 'darwin') {
  var chilkat = require('@chilkat/ck-node23-mac-universal');
}

function chilkatExample() {

    // 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.
    var mailman = new chilkat.MailMan();

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

    // Create a new email object
    var email = new chilkat.Email();

    // Add an embedded image to the HTML email.
    var fileOnDisk = "images/dude2.gif";
    var filePathInHtml = "dudeAbc.gif";

    // Embed the GIF image in the email.
    var success = email.AddRelatedFile2(fileOnDisk,filePathInHtml);
    if (success !== true) {
        console.log(mailman.LastErrorText);
        return;
    }

    // The src attribute for the image tag is set to the filePathInHtml:
    var htmlBody = "<html><body>Embedded Image:<br><img src=\"dudeAbc.gif\"></body></html>";

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

    success = mailman.SendEmail(email);
    if (success !== true) {
        console.log(mailman.LastErrorText);
    }
    else {
        console.log("Mail Sent!");
    }


}

chilkatExample();