ImapX 2 all folders example

        private static void Main(string[] args)
        {
            var client = new ImapClient();
            client.Connect();
            client.Login();
            foreach (var item in WalkFolderTree(client.Folders))
            {

                Console.WriteLine(item.Path);
            }
            client.Logout();
        }

        public static IEnumerable<Folder> WalkFolderTree(FolderCollection folders)
        {
            foreach (var item in folders)
            {
                if (item.HasChildren)
                {
                    WalkFolderTree(item.SubFolders);
                }
                yield return item;
            }
        }