Mozilla begins limited early access to paid Thundermail service

Mozilla-backed Thunderbird has begun giving some people on its waitlist early access to Thundermail, a paid, hosted email service intended to complement its free desktop and mobile apps. The move adds a potential revenue source for the project and offers an alternative to ad-supported email accounts, though the service has not yet opened to everyone.

Thundermail works in a web browser, Thunderbird’s Android app and other compatible email clients. Its initial package includes up to 15 email addresses, three custom domains, 30 GB of email storage and 60 GB for Thunderbird Send, an end-to-end encrypted file-sharing service. Sign-up pages indicate a price of $6 per month when billed annually; the article’s early-access year cost about £55. A full launch was previously expected in 2026, but Thunderbird had not confirmed a date.