Thundermail June 2026 update: what we learned after the first few waves of invites - The Thunderbird Blog

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Product<br>Thundermail June 2026 update: what we learned after the first few waves of invites

June 23, 2026

Natalie Ivanova

5 responses

Over the past several weeks, we have been welcoming early users from our waitlist into Thundermail, a few waves at a time. Many of you are now setting up your accounts, trying things out, and sharing your thoughts with us.

Naming updates

You may have noticed that we are now saying Thundermail more often, and Thunderbird Pro less.

Thunderbird Pro started as the name for our subscription services, including Thundermail, Appointment, and Send. But early feedback made two things clear: people cared most about Thundermail, and “Pro” created confusion about whether Thunderbird itself was becoming a paid or limited product.

So, to clarify things, Thunderbird Pro is now simply Thundermail: the email service from Thunderbird, with features like Appointment and Send included .

The Thunderbird Desktop and Mobile apps remain exactly what they are today: powerful, compatible with any email service, and free.

What we learned so far

Every day, members of our team are reading through your survey responses, your messages in the Thundermail Early Bird community chat, your support requests, and every new idea and vote on the board. We discuss what we are hearing, and we sort it into what we can address right away and what we want to plan for. Then we keep working in the open, where you can see what we are up to and tell us when something is not quite right.

Here are some of the things we’ve learned so far:

Custom domains matter a lot. Many called this out directly, along with support for unlimited custom domain aliases. Several responses said these features stood out compared to other email providers.

Multi-factor Authentication saw a lot of requests on the ideas board , and we listened. This is now in progress and will be available soon.

Users appreciate that Thundermail is open and works with any email app. It has always been our intention to stick to open standards so Thundermail stays easy and open to use with Thunderbird or any other app.

A bit of surprise that calendar and contacts are included. Apparently we should probably talk about that more.

DNSSEC and DANE support picked up a lot of votes and is now on the roadmap.

Requests for more pricing tiers and plans were frequently mentioned, which we will be adding once Thundermail is out of beta and open to the general public.

https://ideas.tb.pro/p/additional-pricing-tiers

https://ideas.tb.pro/p/a-la-carte-pricing

However, there was one request which came through louder than any other…

Webmail

Webmail was, by a wide margin, the most requested idea from our community, and whereas we had it in the plans for down the road, many people expected this to be a feature available from day one.

We moved webmail to the top of the list, shifted resources into the work behind it and we are excited to share that an early alpha version of it is coming next month. As with most early releases, it will have some rough edges, but will also allow for a much more interactive user experience for our beta testers. Everyone will have a vote in how it’s shaped for the future.

A look at what is coming next

Webmail! Arriving soon.

Two factor authenticatio n is now in progress.

More reliable email , as we keep fine tuning things behind the scenes, training global mail servers and spam filters.

Onboarding improvements for a smoother first time sign-up flow.

Send and Appointment

Our scheduling and secure file sharing tools are still here, and they are still part of your subscription. Our main focus right now is Thundermail and webmail, but we are continuing to care for both with steady improvements along the way.

Send : Improved Thundermail integration, providing end-to-end encrypted file attachments without the need for a separate add-on. Users on our Daily version can already test this feature today.

Appointment : Streamlined the sign up flow, added an easy one click connection with the Thundermail calendar, and refreshed the calendar view design.

We’re looking for more ideas

If you are an Early Bird, we would love for you to visit our ideas board to share your suggestions and vote on the ones you would most like to see. We really do read every single one.

And if you have not been invited yet, you can join the waitlist. More waves are going out soon, and we are looking forward to welcoming you onboard.

Thank you for helping us build Thundermail.

Tags: tbpro<br>thundermail

5 responses

zakius<br>wrote on

June 23, 2026 at 23:03

there is no Thunderbird Mobile app, there’s K-9 under a new management

Thunderbird Mobile would be the same app, likely with responsive GUI to match the mobile screen, but with exactly the same internals, features, and when connected to external monitor the same GUI

same...