Mail Blog
News, engineering insights, and privacy updates from the Aster team.
Password-protected, quantum-safe messages to anyone
How Aster lets you send encrypted, password-protected messages to Gmail and Outlook users using ML-KEM-768 post-quantum encryption, with no keys required on their end.
Our code audit, and the fixes
Our code audit, and the fixes
Can I change my username?
Your Aster username is permanent because it is also your email address and encryption identity. Here is why it cannot be renamed, and the two reliable ways to end up with the name you want.
Why Aster won't become the next Skiff
Skiff's shutdown left users scrambling. Here's why Aster is built differently: no investors steering us toward a sale, AGPL code that outlives the company, and standard OpenPGP keys you can take anywhere.
Hi, we're Aster. Here's what we care about.
Aster's mission and the five values we won't trade away: privacy as a right, security that's easy, full open source, no lock-in, and answering to users, not investors. With receipts.
What happens when your subscription ends
A plain explanation of what changes the moment your paid plan ends. What we keep, what gets paused, what you can still do, and how to get back where you were without losing anything.