Interesting, nice to see other options out there. However, you'll have stiff competition with Proton and Tuta providing similar services at lower prices.

good luck and congratulations for choosing Europe for hosting as much as you can. The prices will have to be reviewed after the first "wave" of users, but as is said in the article, the expectation is to do it after a while.
Do have any ideia if everything will work as a PWA if we aren't able/willing to use the Thunderbird mobile app? Or on other FOSS e-mail apps?
Thank you for giving us alternatives.

@jt_rebelo Thanks for the feedback on our current Thunderbird Pro updates! And while Send is tied into the Thunderbird app for now, Appointment is a web app and Thundermail will work with any email client that uses IMAP or JMAP.

thank you! 😊