Comment by rootsudo

also competing with square and apple...

I don't see how it's an effective product, if they released this 20 years ago at the advant of hotmail going downhill and the release of unlimited storage (lol) gmail it would've been a game changer since they had a client this whole time.

But now, vendor lock in is strong w/ Microsoft and Outlook that I question do people even use Thunderbird? It was a great competitor to Outlook Express and 2003... but now.. I really don't know, but I guess their product managers think so.

"The Thunderbird database says its number of active monthly installs has dropped from 17.7 million in late December 2020 to 16.2 million in late March 2025, with the mail app struggling to keep up with the industry’s main players like Gmail.

With the launch of Thunderbird Pro, Mozilla is adding Thunderbird Appointment, a new scheduling tool for sharing calendar links; Thunderbird Send, a rebuild of the discontinued Firefox Send; and Thunderbird Assist, a new AI-powered writing tool enabled via a partnership with Flower AI that is intended to do the processing locally to eliminate privacy concerns.

The final launch will be Thundermail, an email hosting service using the open-source Stalwart stack. Usrs will be able to pick between thundermail.com and tb.pro domains."

I really don't see how this is a market changer, the market is stuffed with competitors and every domain registrar offers some form of email service too.