I’ve been experiencing a problem today with Push to Kindle 2.1 where I get an email from Amazon saying that “There was a problem with the document(s) that you sent to Kindle”. Here’s one website that I tried, and I’ve attached the screenshot that I got afterwards, let me know if there’s any other info I can provide that might help you fix the problem. Thanks!
Thanks for reporting this. Yes, appears to have been an Amazon issue. Articles are being processed okay now. Please let us know if you still have trouble.