(I would have sent this off-list, but for obvious reasons I couldn't.) Mails for someone here who goes by the handle "ast" with a fake address of n...@gmail.com keep landing in my Gmail spam folder. I suspect the same is true for all people subscribed to python-list who use Gmail. Gmail (correctly, I think) can't verify that the mail I received actually originated there. It appears this user is actually posting via Usenet through the server news.free.fr (apparently ProxAd). I check my spam folder regularly for false positives, but I'm sure many people don't. Whoever you are, ast, you might want to reconsider your choice of fake return address.
Skip -- https://mail.python.org/mailman/listinfo/python-list
