How to send Substack newsletters to your Kindle

Substack newsletters are some of the best long-form writing online, and an email inbox is one of the worst places to read them. The good news is that every Substack publishes an RSS feed, which means you can have new posts delivered to your Kindle without forwarding a single email.

Step 1: Find the newsletter’s feed

A Substack’s feed is its address with /feed on the end:

• On a Substack address: https://NAME.substack.com/feed
• On a custom domain: the same thing, at the site’s root — for example https://www.noahpinion.blog/feed

Open it in a browser and you should see a page of XML. If you’re using RSS to Kindle you can skip this step: paste the newsletter’s ordinary web address and it finds the feed for you, custom domains included.

Step 2: Add it to RSS to Kindle

1. Open RSS to Kindle. Many popular Substacks are already in the catalog, so search there first — you can send the latest post before making an account.
2. If it isn’t there, paste the Substack’s URL to add it.
3. Enter your Kindle’s email address and approve our sender, newpost@rsstokindle.com, in your Amazon settings. If you haven’t done this before, here’s where both settings live.

From then on, each new post arrives in the next morning’s digest along with anything else you follow, formatted as a proper ebook. Add a few newsletters and the digest becomes a small magazine: you can reorder them, limit how many posts any one contributes, or snooze one for a while without unsubscribing.

What about paid posts?

This is the one real limitation, and it applies to every RSS reader, not just ours. Substack’s public feed includes free posts in full, but paid posts stop at the paywall — you get the opening few paragraphs and a “Read more” link. Substack doesn’t offer a private feed for paying subscribers.

So if a newsletter you pay for is mostly paywalled, the Kindle will get previews. For those, sending the full post from your browser while logged in to Substack, with a tool like Push to Kindle, is the way to get the whole thing. For everything free, which is most of Substack, the feed carries the complete post.

Why not forward the emails?

You can forward a newsletter email to your Kindle address, and for one issue it works. As a habit it doesn’t: every issue needs a manual forward, the email’s layout comes through with buttons and footers intact, and each one lands as a separate document. Going through the feed means nothing to remember and one clean book a day.