ImapClient Client = new ImapClient("imap.gmail.com", 993, "My_UsernamMe",
    "My_Password", true, AuthMethod.Login);

// Get a list of all mailboxes.
foreach(string m in Client.ListMailboxes())
{
    MailboxInfo info = Client.GetMailboxInfo(m);

    Console.WriteLine(info.Name);
    Console.WriteLine("Used storage: " + info.UsedStorage);
    Console.WriteLine("Free storage: " + info.FreeStorage);
    Console.WriteLine("Next UID: " + info.NextUID);
    Console.WriteLine("Messages: " + info.Messages);
    Console.WriteLine("Unread: " + info.Unread);
    Console.WriteLine("Set Flags: ");
    foreach (MailboxFlag f in info.Flags)
        Console.Write(f.ToString() + ",");
    Console.WriteLine();    
}

Client.Dispose();