📨 Thunderbird will have its own email
Yes, the popular email client has expansion plans and not a few, several things have been confirmed to be coming
ThunderMail: Email service confirmed to have German infrastructure. It will also have custom domains: @thundermail.com and @tb.pro
ThunderBird Appointment: Scheduling tool that will be integrated to insert appointment links directly into email, to support different meeting formats.
Thunderbird Send: File storage and transfer service, encrypted and up to 500GB of storage.
All this would be part of its "Thunderbird Pro" package and it is confirmed that its services are open source and self-hostable.
The services are optional and do not affect the free functions of its Thunderbird client.
https://blog.thunderbird.net/2025/08/tbpro-august-2025-update/