(Node.js) Delete Email Individually (One at a time) from an IMAP Mailbox

Downloads email from an IMAP mailbox and deletes emails individually (one by one).

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

    var imap = new chilkat.Imap();

    // Connect to an IMAP server.
    // Use TLS
    imap.Ssl = true;
    imap.Port = 993;
    var success = imap.Connect("imap.someMailServer.com");
    if (success !== true) {
        console.log(imap.LastErrorText);
        return;
    }

    // Login
    success = imap.Login("myLogin","myPassword");
    if (success !== true) {
        console.log(imap.LastErrorText);
        return;
    }

    // Select an IMAP mailbox
    success = imap.SelectMailbox("Inbox");
    if (success !== true) {
        console.log(imap.LastErrorText);
        return;
    }

    // messageSet: MessageSet
    var messageSet;
    // We can choose to fetch UIDs or sequence numbers.
    var fetchUids = true;
    // Get the message IDs of all the emails in the mailbox
    messageSet = imap.Search("ALL",fetchUids);
    if (imap.LastMethodSuccess == false) {
        console.log(imap.LastErrorText);
        return;
    }

    // Fetch the emails into a bundle object:
    // bundle: EmailBundle
    var bundle;
    bundle = imap.FetchBundle(messageSet);
    if (imap.LastMethodSuccess == false) {

        console.log(imap.LastErrorText);
        return;
    }

    // To mark a complete set of emails for deletion, call SetFlags:
    success = imap.SetFlags(messageSet,"Deleted",1);
    if (success !== true) {
        console.log(imap.LastErrorText);
        return;
    }

    // Messages can also be marked for deletion individually:
    // Loop over the bundle and mark each message for deletion.
    var i = 0;
    var numEmails = bundle.MessageCount;
    while (i < numEmails) {
        // email: Email
        var email = bundle.GetEmail(i);
        console.log(email.From);
        console.log(email.Subject);

        // To delete this email, set the "Deleted" flag to 1.
        // The email is not actually deleted until Expunge or
        // ExpungeAndClose is called.
        success = imap.SetMailFlag(email,"Deleted",1);
        if (success !== true) {
            console.log(imap.LastErrorText);
            return;
        }

        console.log("--");

        i = i+1;
    }

    success = imap.ExpungeAndClose();
    if (success !== true) {
        console.log(imap.LastErrorText);

        return;
    }

    // Disconnect from the IMAP server.
    success = imap.Disconnect();


}

chilkatExample();