A network policy block message informs users about restricted access to content, providing instructions for authentication and proper API usage. The message includes guidance for both regular users and developers, with specific requirements for User-Agent configuration.

https://old.reddit.com/r/kindle/comments/1inr9uy/fyi_amazon_is_removing_download_transfer_option/

#networksecurity #authentication #apiaccess #errormessage #usersupport