public FolderCollection DownloadFolders()

Public Function DownloadFolders As FolderCollection

using System;
using MailBee;
using MailBee.ImapMail;

class Sample
{
    static void Main(string[] args)
    {
        Imap imp = new Imap();

        // Connect to the server and log in the account.
        imp.Connect("mail.server.com");
        imp.Login("jdoe", "secret");

        // Download all the folders.
        FolderCollection folders = imp.DownloadFolders();

        // Used for indentation of folder levels in the output.
        System.Text.StringBuilder sb = new System.Text.StringBuilder();

        foreach (Folder fold in folders)
        {
            // Indent each nesting level with two space characters.
            sb.Length = 0;
            sb.Append(' ', fold.NestingLevel * 2);

            // Print formatted name of the folder.
            Console.WriteLine(sb.ToString() + fold.ShortName);
        }

        imp.Disconnect();
    }
}

Imports System
Imports MailBee
Imports MailBee.ImapMail

Module Sample
    Sub Main(ByVal args As String())
        Dim imp As New Imap

        ' Connect to the server and log in the account.
        imp.Connect("imap4.company.com")
        imp.Login("jdoe@company.com", "secret")

        ' Download only subscribed folders.
        Dim folders As FolderCollection = imp.DownloadFolders()

        ' Used for indentation of folder levels in the output.
        Dim sb As New System.Text.StringBuilder

        ' Print full names of the folders.
        For Each fold As Folder In folders
            ' Indent each nesting level with two space characters.
            sb.Length = 0
            sb.Append(" ", fold.NestingLevel * 2)

            ' Print formatted name of the folder.
            Console.WriteLine(sb.ToString() & fold.ShortName)
        Next

        imp.Disconnect()
    End Sub
End Module