Amazon has announced that it is drastically changing its popular Send to Kindle system. After April 1, 2025, Send to Kindle will only support complete email addresses (e.g., “kindlecustomer@xyz.com”) and will no longer support partial email addresses or domain-only addresses (e.g., “@xyz.com”). This change helps ensure that only senders from emails you approve can deliver documents to your Kindle.
After April 1, documents from incomplete or unapproved sender email addresses won’t be delivered, and you’ll receive a send failure email. This change only affects sending files through Send to Kindle for Email.
This change should not affect most users who use Send to Kindle to deliver PDF files to their Kindle Scribe or e-books to their Kindle e-readers. However, this will change how schools, companies, and organizations like Bookfunnel and NetGalley simultaneously deliver ARC books to thousands of users.
Amazon is not yet eliminating Send to Kindle; it is simply closing a loophole that could lead to future security vulnerabilities. This change will make it harder for companies to deliver e-textbooks and e-books to their users. This will necessitate redesigning their content delivery systems to send digital content to Kindle users who need it.
Michael Kozlowski is the editor-in-chief at Good e-Reader and has written about audiobooks and e-readers for the past fifteen years. Newspapers and websites such as the CBC, CNET, Engadget, Huffington Post and the New York Times have picked up his articles. He Lives in Vancouver, British Columbia, Canada.