Node.js

Download and Save Email Attachments (POP3)

See more POP3 Examples

Downloads emails from a POP3 mailbox and saves all attachments. Node.js

NODEJS_PRELUDE

function chilkatExample() {

    var success = false;

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

    // The mailman object is used for receiving (POP3) 
    // and sending (SMTP) email.
    var mailman = new chilkat.MailMan();

    // Set the POP3 server's hostname
    mailman.MailHost = "pop.yourserver.com";

    // Set the POP3 login/password.
    mailman.PopUsername = "***";
    mailman.PopPassword = "***";

    // Copy the all email from the user's POP3 mailbox 
    // into a bundle object.  The email remains on the server.
    // FetchAll is a reasonable choice for POP3 maildrops that don't have too many
    // emails. For larger mail drops, one might download emails one at a time..
    var bundle = new chilkat.EmailBundle();
    var keepOnServer = true;
    var headersOnly = false;
    // Irrelevent because we are NOT downloading headers-only
    var numBodyLines = 0;
    success = mailman.FetchAll(keepOnServer,headersOnly,numBodyLines,bundle);
    if (success == false) {
        console.log(mailman.LastErrorText);
        return;
    }

    // The directory path can be relative or absolute.
    // This shows a Windows style directory path.  On other operating systems, the path
    // would be different..
    var dirPath = "c:/myAttachments";

    var email = new chilkat.Email();
    var bundleIndex = 0;
    var numMessages = bundle.MessageCount;

    while ((bundleIndex < numMessages)) {
        bundle.EmailAt(bundleIndex,email);

        // Save all attachments to the specified directory.
        // The directory is automatically created if it does not yet exist.
        success = email.SaveAllAttachments(dirPath);
        if (success == false) {
            console.log(email.LastErrorText);
            return;
        }

        // The OverwriteExisting property controls whether already-existing files
        // are automatically overwritten.  By default, it is set to true so that existing
        // files will be overwritten.

        // Setting OverwriteExisting = false will cause the attachment-saving methods to generate
        // unique filenames if a file with the same name already exists.  The actual filename(s)
        // saved will be present by calling GetAttachmentFilename for each attachment *after*
        // saving.
        // For example...
        email.OverwriteExisting = false;
        success = email.SaveAllAttachments(dirPath);
        if (success == false) {
            console.log(email.LastErrorText);
            return;
        }

        var numAttachments = email.NumAttachments;
        var attachIndex = 0;
        while ((attachIndex < numAttachments)) {
            // If the attachment filename was changed to prevent overwriting,
            // GetAttachmentFilename will return the new filename.
            console.log(email.GetAttachmentFilename(attachIndex));
            attachIndex = attachIndex+1;
        }

        // Attachments can also be saved individually.
        attachIndex = 0;
        while ((attachIndex < numAttachments)) {

            console.log("Original Filename: " + email.GetAttachmentFilename(attachIndex));
            success = email.SaveAttachedFile(attachIndex,dirPath);
            if (success == false) {
                console.log(email.LastErrorText);
                return;
            }

            // If OverwriteExisting = true, the saved filename will always equal the original filename,
            // unless there are characters present in the filename that are not allowed by Windows,
            // such as * ? < > | etc.  In those cases the illegal characters are either removed or replaced
            // with underscore characters to allow the file to be saved.
            console.log("Saved Filename: " + email.GetAttachmentFilename(attachIndex));
            attachIndex = attachIndex+1;
        }

        bundleIndex = bundleIndex+1;
    }


}

chilkatExample();