Mail

It would be Great to have a mail system for the neighborhood to send items to eachother even if the other is offline

Yes that would be nice. More importantly I wish there were notifications about the chat or if implemented, the mail system. I always have had to rely on other social websites for communication between neighbours. And sometimes not all neighbours were using that site so its really annoying to have somebody requiring something urgent that I have in stock only to see I'm two hours late.

Yes this would be s helpful addition, but isn't this quite similar to requesting and donating? Tell me if I'm wrong here.