Buttondown

Share your summer reads in your newsletter with our https://Bookshop.org embed feature.
Now, you can recommend books you're excited about with your subscribers, all while supporting local, independent bookstores. Win/win!💙 📚️
https://buttondown.com/blog/2026-03-26-bookshop-embeds

How we've been making your newsletter safer from behind the scenes.
https://buttondown.com/blog/2026-03-06-how-we-enabled-content-security-policy

If you've been dreaming of having the option to gatekeep your content, it's finally available!

We've launched subscription wall—a feature that lets you gate content in your archives behind a subscription, without needing paid subscriptions or Stripe set up. It's available for free and paid plans, so give it a whirl!

Authors and book lovers this ship is for you:
Buttondown now supports https://Bookshop.org embeds!

Skip the password entirely—now you can login with just your passkey.
https://buttondown.com/blog/2026-03-19-passwordless-passkey-login

Guest newsletters 101.
https://buttondown.com/blog/guest-newslettering-101

Add a personal touch to your newsletter by using template variables.
Instead of personally addressing emails to your subscribers one at a time, you can address them by their names automatically by simply plugging keys into a template variable.
Learn how to take advantage of this time-saving feature: https://docs.buttondown.com/subscriber-metadata

We've added passkeys for 2FA!
You can now use your fingerprint, face, or security key as a second factor when signing into your account.
https://buttondown.com/blog/2026-03-09-passkeys

Our public postmortem for the incident on March 31st, 2026.
https://buttondown.com/blog/incident-0024

Email can learn a lot from the rise, fall, and quiet continuation of pneumatic tubes.
https://buttondown.com/blog/pneumatic-email

See ya March👋 🌸
This month we've shipped loads cool features that improve your experience and newsletter:
- 2FA passkeys + recovery codes
- Passwordless login
- Bookshop.org embeds
- Bulk renaming of metadata keys
+ more!
See all the ships on our blog!🚀
https://buttondown.com/blog

The email feature that got added because people kept marking email newsletters as junk.
https://buttondown.com/blog/how-to-unsubscribe

Even more tweaks to inbound and replies!
https://buttondown.com/blog/2026-06-24-replies-and-sending-domains

You either loved it, or were using it wrong.
https://buttondown.com/blog/lotus-notes-email

Public postmortem: manually adding subscribers failed.
https://buttondown.com/blog/incident-0029

Public postmortem: app downtime
https://buttondown.com/blog/incident-0028

Our public postmortem for the incident on June 10th, 2026.
https://buttondown.com/blog/incident-0027

How we save you from the dreaded Broken Link Embarrassment™️.
https://buttondown.com/blog/link-checking

This new ship should help you out (we hope).
We've simplified the email address settings by moving the email address field entirely to your sending domain settings. This update should make your life a little easier.💙
https://buttondown.com/blog/2026-04-05-sending-email-address

Our nerd answers the question: Does email length affect deliverability? 🤔
https://buttondown.com/blog/email-length-deliverability

New ship!🚀
If you're on a Professional plan or higher, you can now set up a custom email template directly from your email design settings.
https://buttondown.com/blog/2026-02-16-custom-email-templates

We've made the change you've been asking for: simplified cancellation!
Now you can easily cancel your billing when you want a break and reactivate them whenever you want to begin sending. The best part? You keep access to account features during the pause!💙
https://buttondown.com/blog/2026-02-14-simplified-cancellation

X.400 said what must be possible. SMTP said what must be done.
https://buttondown.com/blog/x400-vs-smtp-email

Your newsletters can make your company feel like a local small business.
https://buttondown.com/blog/founder-led-company-newsletter

Gather round while an old man yells at cloud (email).
https://buttondown.com/blog/inbox-history-to-today

While other projects floundered in red tape, email thrived in it.
https://buttondown.com/blog/email-survived-government

Time for a little spring cleaning🧹
We've spruced up our DPA, privacy policy, sub-processor list, and cookie policy. Read the the updated legal docs to see what's changed (not much but you should still take a look).
https://buttondown.com/blog/2026-03-16-legal-docs-refresh

Should we keep group emails in the past or are they still useful?
https://buttondown.com/blog/email-exploders

Exciting new ship!🚀
Now you can sort and filter your subscribers page by email open rate and link click rate, making it easier to find subscriber patterns and know who is engaging with your newsletter.
https://buttondown.com/blog/2026-02-23-open-click-rate-sorting

New ship!🚀
We've now added the ability to use your own custom sending domain as the click tracking proxy instead of our shared one.
https://buttondown.com/blog/2026-02-21-custom-click-tracking-domains

Now you can do more with the API!
We've added a big batch of new fields to the Newsletters API—more locale, templates, socials, transactional emails, and more.
https://buttondown.com/blog/2026-02-20-newsletter-api-fields

We've revamped replies!
Now, replies and reply tracking are more user-friendly and streamlined.
https://buttondown.com/blog/2026-02-18-revamped-replies

Customize your archives with Dark Mode.
This useful feature makes it so your archives automatically match your reader's system preference for light or dark mode.
Learn how to enable it here: https://docs.buttondown.com/customizing-web-design

Learn what we're doing each day to improve the platform for everyone on our dedicated changlog page. It's a one stop shop for understanding what's being shipped and who is doing the work.💙
https://buttondown.com/changelog

Happy April 1st! 💙 ✉️
Important update on https://buttondown.com

To click or not to click?
https://buttondown.com/blog/how-spam-button-works

Update: We've added a two-column archive index for the Modern theme!
Now, you can lay your Modern archive out as a grid instead of a single tall column.
https://buttondown.com/blog/2026-06-16-two-column-archive-index

Prefer to keep your newsletter private?
We know everyone doesn't want their writing out for the world to see, which is why we offer not one but TWO ways to keep your newsletter under wraps: Private Mode and Archive visibility.
Learn how to activate these features: https://docs.buttondown.com/private-mode

Collab with your team easily with team notes! 📝
We've added a new notes section where you can leave private notes for your team members.
Check out the new feature: https://buttondown.com/blog/2026-06-03-notes-on-team-members

Kalina Silverman uses her newsletter to skip the small talk and make Big Talk.
https://buttondown.com/blog/kalina-silverman

Manually fixing inconsistent metadata is such a pain, so we made it easier by adding a bulk action.
Now you can rename metadata keys in bulk, right from the subscribers page. One and done!
https://buttondown.com/blog/2026-03-17-rename-metadata-keys

The origin story of emails in space. 🚀
https://buttondown.com/blog/email-in-space

Open any app on your phone and count the buttons, features, and formatting it inherited from the OG communications app.
https://buttondown.com/blog/email-experiments

It turns out you’ve been using agents since way before the AI variety started deleting everything in their owners’ inboxes.
https://buttondown.com/blog/not-ai-email-agents

How early computer users created the longest lasting formatting style, out of spare characters.
https://buttondown.com/blog/the-markdown-story

A simple break down of how Buttondown's date-based API versioning system works, and how it lets us ship breaking changes without impacting your integrations.
https://buttondown.com/blog/api-versioning

What the hell is a lead magnet???
https://buttondown.com/blog/lead-magnets

We've added a helpful feature to 2FA—recovery codes. 🔐
Now, if you lose access to your authentication app, there's no need to panic because you have a backup option.
https://buttondown.com/blog/2026-03-05-recovery-codes