We have a new way of setting up your sending domain on Buttondown: Managed DNS.

Your sending domain is the domain that you send emails from, like you@yourdomain.com.

Previously, when you added your domain to Buttondown, we gave you a list of DNS records to add. These records verified you with one of our email sending providers, so that we could use your domain to send emails on your behalf.

However, if we ever wanted to change email sending providers, or switch you between multiple providers, we would have to ask you to update your DNS again.

With Managed DNS, you choose a subdomain that you can dedicate to Buttondown (such as newsletter.example.com or email.example.com) and delegate control of that subdomain to Buttondown by adding two NS (nameserver) records that point to our servers.

From then on, Buttondown can control the DNS records for that subdomain, allowing us to switch you between email sending providers — and even register you for new ones — without you needing to get involved. We'll do this to improve deliverability, or in case of provider outages.

This is a fully backward-compatible addition, and you are totally welcome to keep your current domain setup indefinitely. If you'd like to switch to Managed (totally optional!), enter a unique subdomain in your Buttondown domain settings and then add the two NS records under Managed on the sending domain page.

For more information, check out the updated sending domain documentation.