(Node.js) Set the X-Priority Header of an Email

Demonstrates how to set the X-Priority header field of an email.

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-node21-win-ia32');
    } else {
        var chilkat = require('@chilkat/ck-node21-win64'); 
    }
} else if (os.platform() == 'linux') {
    if (os.arch() == 'arm') {
        var chilkat = require('@chilkat/ck-node21-arm');
    } else if (os.arch() == 'x86') {
        var chilkat = require('@chilkat/ck-node21-linux32');
    } else {
        var chilkat = require('@chilkat/ck-node21-linux64');
    }
} else if (os.platform() == 'darwin') {
    if (os.arch() == 'arm64') {
        var chilkat = require('@chilkat/ck-node21-mac-m1');
    } else {
        var chilkat = require('@chilkat/ck-node21-macosx');
    }
}

function chilkatExample() {

    // The AddHeaderField can be called to add any header field.
    // If the header field already exists, AddHeaderField replaces it.
    var email = new chilkat.Email();
    email.AddHeaderField("X-Priority","3 (Normal)");

    email.AddHeaderField("X-Priority","1 (High)");

    email.AddHeaderField("X-Priority","5 (Low)");

    // The X-Priority value ranges from 1 to 5, with 1 being 
    // high priority, 3 is normal, and 5 is low.
    // You may set X-Priority to the number alone:

    email.AddHeaderField("X-Priority","1");

    // Including extra text, such as (High), should not 
    // affect how the header is interpreted.
    email.AddHeaderField("X-Priority","1 (High)");

}

chilkatExample();