We have released an update of the server that significantly improves the performance when users send an email.
Slow mail performance occasionally led to a bug where users received the notification that an email could not be sent while in fact this email got queued and was sent. Due to this some users send the same email several times. This has now been fixed, and overall speed has also improved.
This means that you do not need to get your own SSL certificate when you want to use Tutanota with your own domain. Tutanota will also update your certificates automatically. This will make using Tutanota with your own domain much easier.
Please check our Roadmap to see all the exciting features we have planned for you!