Send to Kindle by Email: The Complete Guide
Everything about Amazon’s Send to Kindle email feature: finding your @kindle.com address, approving senders, supported file types, common errors, and how to automate deliveries.
Every Kindle has a superpower most owners never use: its own email address. Send a document to that address and it appears in your library, synced across your devices. This guide explains how the system works, the rules Amazon enforces, and how to turn a manual trick into an automatic reading pipeline.
Every Kindle has an email address
Amazon calls the feature Send to Kindle. Each device and Kindle app registered to your account gets an address ending in @kindle.com. To find it:
- Go to Amazon’s Content and Devices page.
- Open the Preferences tab.
- Expand Personal Document Settings. Your devices and their addresses are listed there, and you can edit them to something memorable.
The approved sender list (where most people get stuck)
To stop spam, Amazon ignores mail from addresses you have not approved. In the same Personal Document Settings section, the Approved Personal Document E-mail List controls who may send to your Kindle. Add your own email address — and if you use a delivery service like Readry, its sending address ([email protected]) too. Our authorization guide shows each screen.
If a document never arrives, this list is the first thing to check: the sender must match exactly, and the destination must be the right @kindle.com address.
What you can send
Amazon accepts common document formats including EPUB, PDF, DOC/DOCX, TXT, RTF, HTML, and common image types. Two practical notes:
- EPUB is the format that reads best. It reflows with your font-size settings like a real book. PDFs keep a fixed layout and are often painful on 6-inch screens.
- Raw forwarded emails read badly. Newsletters arrive as HTML designed for email clients — wide layouts, buttons, footers, tracking pixels. They display, but they do not feel like a book.
Limits worth knowing
- Attachments have a size cap (Amazon documents 50 MB per file via email).
- A single email can carry up to 25 documents.
- Personal documents live in your Kindle library but are not part of the bookstore — no reviews, no X-Ray, and covers can look generic unless the file provides one.
From manual trick to automatic pipeline
Sending the occasional PDF by hand is easy. The feature becomes genuinely life-changing when it runs itself. That takes two pieces:
- Conversion. Something needs to turn messy email HTML into a clean ebook. Readry rebuilds each newsletter as a proper EPUB-style book — readable typography, a table of contents, chapters for each article, and QR codes standing in for links.
- Forwarding. A one-time Gmail filter forwards matching newsletters to your personal Readry address automatically.
With both in place, the pipeline is: newsletter arrives → forwarded to Readry → converted to an ebook → delivered through Send to Kindle → waiting on your device. No app, no saving, no syncing ritual.
Troubleshooting checklist
- Nothing arrives: confirm the sender is on your approved list and the destination address is correct.
- Wrong device: each device has its own address; documents also sync via your library under Docs.
- Kindle offline: deliveries wait until the device next connects to Wi-Fi.
- Formatting looks off: send EPUB rather than PDF, or let a conversion service handle it for you.
Want the automated version without the fiddling? Start with Readry free — it handles conversion and delivery, and you keep Amazon’s controls.