(Node.js) POP3 Fetch Mime Source of Email by UIDL

Demonstrates how to fetch the MIME source of a single email by UIDL.

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() {

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

    var mailman = new chilkat.MailMan();

    mailman.MailHost = "pop.example.com";

    mailman.PopUsername = "myLogin";
    mailman.PopPassword = "myPassword";

    mailman.MailPort = 995;
    mailman.PopSsl = true;

    // sa: StringArray
    var sa = mailman.GetUidls();
    if (mailman.LastMethodSuccess == false) {
        console.log(mailman.LastErrorText);
        return;
    }

    var numUidls = sa.Count;
    var bdMime = new chilkat.BinData();

    // Download the 1st email and save to a file.
    if (numUidls > 0) {
        var uidl = sa.GetString(0);
        console.log(uidl);

        // Download the MIME source of the email into bdMime.
        // The bdMime contains the email exactly as it is on the mail server.
        var success = mailman.FetchMimeBd(uidl,bdMime);
        if (success == false) {
            console.log(mailman.LastErrorText);
            return;
        }

        success = bdMime.WriteFile("qa_output/firstEmail.eml");
    }


}

chilkatExample();