Hi
Yes, you've not uploaded since August 6th, hence the deletion in November. The problem mail I have no idea - that response is often used by Google to greylist a message as possible spam but I don't see anything here. You could try changing your email (or I can do that for you) to a non-Google address and see if that works I suppose. I assume you have upload fail monitoring turned on, if so then there have been no bounces here and I assume you have only just recently noticed the lack of uploads.
Sorry, but there is no way I can find the time to get that list into the system, it's way way too big and there are several different places it could be happening. It is one of the problems of allowing non-UK users which wasn't the original intention. The server suffers all day long from attacks and there are a lot of blocking systems in use although New Zealand isn't one of the intentional blocks..
The best I can do is, as I've done before, to allow the current IP block you are using if you PM me your current IP for both lines if different. Can you get a fixed IP range to use?