Sending to kindle does not support Central Asia account, that is @ kindle.cn. Central Asian users can push content in the form of email attachments. The specific method is to manage my kindle page in Central Asia, add your email address under the personal document menu, and then use the content to be pushed in this email as an attachment to send an email to XXX@kindle.cn to complete the push. XXX registered the first part of the email address for your Central Asia account.