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(Node.js) Controlling Charset of HTML Email

This example demonstrates how to change the charset of an HTML email by setting the Charset property.

Install Chilkat for Node.js and Electron using npm at

Chilkat npm packages for Node.js

Chilkat npm packages for Electron

on Windows, Linux, MacOSX, and ARM

var os = require('os');
if (os.platform() == 'win32') {  
    if (os.arch() == 'ia32') {
        var chilkat = require('@chilkat/ck-node11-win-ia32');
    } else {
        var chilkat = require('@chilkat/ck-node11-win64'); 
    }
} else if (os.platform() == 'linux') {
    if (os.arch() == 'arm') {
        var chilkat = require('@chilkat/ck-node11-arm');
    } else if (os.arch() == 'x86') {
        var chilkat = require('@chilkat/ck-node11-linux32');
    } else {
        var chilkat = require('@chilkat/ck-node11-linux64');
    }
} else if (os.platform() == 'darwin') {
    var chilkat = require('@chilkat/ck-node11-macosx');
}

function chilkatExample() {

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

    var success;

    var email = new chilkat.Email();

    // Tell Chilkat you want the email to be utf-8.
    email.Charset = "utf-8";

    email.From = "somebody@gmail.com";
    email.AddTo("Joe","joe_somebody@gmail.com");
    email.Subject = "This is a test";

    // Load a utf-8 HTML file that will be the body of this email.
    // The HTML contains this line to specify the charset:
    // 
    //     <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
    // 
    // The sample HTML is available here:  https://chilkatsoft.com/exampleData/sample_utf8.html
    // 
    var sbHtml = new chilkat.StringBuilder();
    sbHtml.LoadFile("qa_data/html/sample_utf8.html","utf-8");

    email.SetHtmlBody(sbHtml.GetAsString());

    // If this email was sent as-is, it would look like this:
    var mailman = new chilkat.MailMan();
    console.log(mailman.RenderToMime(email));

    // The MIME that would be sent is this:

    // 	MIME-Version: 1.0
    // 	Date: Wed, 08 Mar 2017 09:39:06 -0600
    // 	Message-ID: <53930EB7EFA37B121FB2CC0E57E9FA4D02AD86A3@CHILKAT13>
    // 	Content-Type: text/html; charset=utf-8
    // 	Content-Transfer-Encoding: quoted-printable
    // 	X-Priority: 3 (Normal)
    // 	From: somebody@gmail.com
    // 	To: Joe <joe_somebody@gmail.com>
    // 	Subject: This is a test
    // 
    // 	<html>
    // 	<head>
    // 	<meta http-equiv=3D"Content-Type" content=3D"text/html; charset=3Dutf-8" />
    // 	</head>
    // 	<body>
    // 	<p>=C3=A0=C3=A8=C3=AC=C3=B2=C3=B9=C3=80=C3=88=C3=8C=C3=92=C3=99=C3=A1=C3=A9=
    // 	=C3=AD=C3=B3=C3=BA=C3=BD=C3=81=C3=89=C3=8D=C3=93=C3=9A=C3=9D=C3=A2=C3=AA=C3=
    // 	=AE=C3=B4=C3=BB=C3=82=C3=8A=C3=8E=C3=94=C3=9B=C3=A3=C3=B1=C3=B5=C3=83=C3=91=
    // 	=C3=95=C3=A4=C3=AB=C3=AF=C3=B6=C3=BC=C3=BF=C3=84=C3=8B=C3=8F=C3=96=C3=9C=C5=
    // 	=B8=C3=A5=C3=85</p>
    // 	</body>
    // 	</html>
    // 

    // -----------------------------------------
    // Let's say we want to send iso-8859-1 instead...
    // Just set the email object's Charset property, like this:
    email.Charset = "iso-8859-1";

    // Now see what would be sent:
    console.log(mailman.RenderToMime(email));

    // 	MIME-Version: 1.0
    // 	Date: Wed, 08 Mar 2017 09:45:03 -0600
    // 	Message-ID: <DD08A5B56532AF11505ACF21A1338E0A3024D34A@CHILKAT13>
    // 	Content-Type: text/html; charset=iso-8859-1
    // 	Content-Transfer-Encoding: quoted-printable
    // 	X-Priority: 3 (Normal)
    // 	From: somebody@gmail.com
    // 	To: Joe <joe_somebody@gmail.com>
    // 	Subject: This is a test
    // 
    // 	<html>
    // 	<head><META http-equiv=3D"Content-Type" content=3D"text/html;charset=3Diso-=
    // 	8859-1">
    // 
    // 	</head>
    // 	<body>
    // 	<p>=E0=E8=EC=F2=F9=C0=C8=CC=D2=D9=E1=E9=ED=F3=FA=FD=C1=C9=CD=D3=DA=DD=E2=EA=
    // 	=EE=F4=FB=C2=CA=CE=D4=DB=E3=F1=F5=C3=D1=D5=E4=EB=EF=F6=FC=FF=C4=CB=CF=D6=DC=
    // 	=9F=E5=C5</p>
    // 	</body>
    // 	</html>

    // -----------------------------------------
    // Let's say we don't want quoted-printable, but instead want 8bit.
    // The AddHeaderField method replaces the header field if it already exists.
    // Do this to get 8bit encoding instead of quoted-printable.
    email.AddHeaderField("Content-Transfer-Encoding","8bit");
    // Now see what would be sent:
    // (Note: Because RenderToMime returns a string, it generally not possible to render MIME to a string
    // IF the MIME contains binary data and uses the 8bit encoding (for example, if a JPEG image was attached).  
    // However, the email would still be sent correctly.)
    console.log(mailman.RenderToMime(email));

    // 	MIME-Version: 1.0
    // 	Date: Wed, 08 Mar 2017 09:51:33 -0600
    // 	Message-ID: <F38B4A8D33C111057E901782305E01AC5BE31B98@CHILKAT13>
    // 	Content-Type: text/html; charset=iso-8859-1
    // 	Content-Transfer-Encoding: 8bit
    // 	X-Priority: 3 (Normal)
    // 	From: somebody@gmail.com
    // 	To: Joe <joe_somebody@gmail.com>
    // 	Subject: This is a test
    // 
    // 	<html>
    // 	<head><META http-equiv="Content-Type" content="text/html;charset=iso-8859-1">
    // 
    // 	</head>
    // 	<body>
    // 	<p>àèìòùÀÈÌÒÙáéíóúýÁÉÍÓÚÝâêîôûÂÊÎÔÛãñõÃÑÕäëïöüÿÄËÏÖÜŸåÅ</p>
    // 	</body>
    // 	</html>
    // 

}

chilkatExample();

 

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