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Aster Mail
Quantum-safe, private end-to-end encrypted, zero access mail
Most encrypted email services leave your subject lines and metadata exposed and unencrypted. Aster Mail encrypts everything, including subject lines, with quantum-safe ML-KEM-768 encryption. Your keys are portable and work with GPG and Thunderbird, with no vendor lock-in. Aster is open source under AGPLv3, hosted in Germany with a generous free plan. Try it free at astermail.org
Hey Product Hunt! We're Findley, Athanasios, and Andrés, founders of Aster Mail.
We have been building an unprecedented end-to-end encrypted email service where we, by design, cannot read your mail. No other encrypted email service has post-quantum cryptography in production that works with any email provider, not just their own users. Client-side encryption with post-quantum cryptography, zero-access architecture, fully open source under AGPL v3, servers located in Germany.
We built Aster Mail because we wanted end-to-end encrypted email that's actually private. All encryption and decryption happens client-side. We encrypt email content, subjects, contacts, folder structure, search indices, timestamps, and attachment data locally before anything touches our servers. Minimal routing metadata (sender/recipient addresses) is required for SMTP delivery, but we encrypt everything we can beyond that. On top of standard PGP, we include post-quantum cryptography by default, protecting against store-now-decrypt-later attacks.
Aster's feature set includes things like: free 10GB of storage, free aliases & ghost aliases (auto-generated anonymous addresses), free custom domains, encrypted contacts with device syncing, burn-after-read messages, scheduled send, email snooze, encrypted search, subscription management, and much more.
Longer term, Aster is building a full encrypted communications suite with drive, chat, and authenticator.
To kick off our launch, use PRODUCTHUNT at checkout for 30% off. Anybody who grabs a plan will also get an Early Supporter badge on their profile. You can claim your Aster address at astermail.org.
About Aster Mail on Product Hunt
“Quantum-safe, private end-to-end encrypted, zero access mail”
Aster Mail was submitted on Product Hunt and earned 0 upvotes and 1 comments, placing #299 on the daily leaderboard. Most encrypted email services leave your subject lines and metadata exposed and unencrypted. Aster Mail encrypts everything, including subject lines, with quantum-safe ML-KEM-768 encryption. Your keys are portable and work with GPG and Thunderbird, with no vendor lock-in. Aster is open source under AGPLv3, hosted in Germany with a generous free plan. Try it free at astermail.org
On the analytics side, Aster Mail competes within Email, Privacy and Encryption — topics that collectively have 48.4k followers on Product Hunt. The dashboard above tracks how Aster Mail performed against the three products that launched closest to it on the same day.
Who hunted Aster Mail?
Aster Mail was hunted by Findley Lucas. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
For a complete overview of Aster Mail including community comment highlights and product details, visit the product overview.
Findley Lucas
Hey Product Hunt! We're Findley, Athanasios, and Andrés, founders of Aster Mail.
We have been building an unprecedented end-to-end encrypted email service where we, by design, cannot read your mail. No other encrypted email service has post-quantum cryptography in production that works with any email provider, not just their own users. Client-side encryption with post-quantum cryptography, zero-access architecture, fully open source under AGPL v3, servers located in Germany.
We built Aster Mail because we wanted end-to-end encrypted email that's actually private. All encryption and decryption happens client-side. We encrypt email content, subjects, contacts, folder structure, search indices, timestamps, and attachment data locally before anything touches our servers. Minimal routing metadata (sender/recipient addresses) is required for SMTP delivery, but we encrypt everything we can beyond that. On top of standard PGP, we include post-quantum cryptography by default, protecting against store-now-decrypt-later attacks.
Aster's feature set includes things like: free 10GB of storage, free aliases & ghost aliases (auto-generated anonymous addresses), free custom domains, encrypted contacts with device syncing, burn-after-read messages, scheduled send, email snooze, encrypted search, subscription management, and much more.
Longer term, Aster is building a full encrypted communications suite with drive, chat, and authenticator.
To kick off our launch, use PRODUCTHUNT at checkout for 30% off. Anybody who grabs a plan will also get an Early Supporter badge on their profile. You can claim your Aster address at astermail.org.