Aster Mail: Encrypted Email
Private email app with end-to-end encryption, aliases, and custom domains
新版本 1.0.14
What's new:
- Sent messages appear in the conversation right away, with undo.
- A banner warns you when storage is nearly full.
- Replies can edit the quoted text.
- Mail rules are in one place in Settings.
Fixed:
- Long messages, wide tables, and dark mode text display correctly.
- Scheduled sends in the past are blocked.
- Custom domain signatures match.
- Multiple accounts stay signed in.
- Faster compose, contacts, and inbox.
- Sent messages appear in the conversation right away, with undo.
- A banner warns you when storage is nearly full.
- Replies can edit the quoted text.
- Mail rules are in one place in Settings.
Fixed:
- Long messages, wide tables, and dark mode text display correctly.
- Scheduled sends in the past are blocked.
- Custom domain signatures match.
- Multiple accounts stay signed in.
- Faster compose, contacts, and inbox.
Aster Mail is a private, encrypted email app for astermail.org accounts.
Your messages are encrypted on your device before they leave it. The server stores ciphertext and nothing else, so nobody at Aster can read your mail, scan it, or sell what is in it. There are no ads, no trackers, and no analytics anywhere in the app.
Private by design
- End-to-end encryption between Aster users, using a post-quantum ratchet protocol
- Zero-access architecture: the server holds only encrypted content
- No ads, no tracking, no telemetry, no profiling
- Open source under AGPL-3.0, so anyone can audit what the app does
Email aliases
- Create an alias for each site you sign up for, and turn one off when it starts getting spam
- See which alias a message arrived on, right in the message list
- Import and export your aliases
Your own domain
- Send and receive on a custom domain, with DKIM signing handled for you
- Buy a domain from inside the app
Everyday mail
- Folders, labels, categories, and search across your whole mailbox
- Swipe actions and a toolbar you can customize
- Templates, signatures, scheduled send, and auto-forwarding
- Blocked senders, sender filters, and an allow list
- Encrypted offline storage, so your mail is there without a connection
Security
- Biometric lock
- Two-factor authentication and a recovery key
- Active session management, so you can sign out a device you no longer have
Notifications
- Private mode hides the sender and subject on your lock screen
- Quiet hours schedule when notifications arrive
- Per-folder muting
This F-Droid build contains no Firebase or Google Play Services dependencies. Push notifications are delivered through any UnifiedPush-compatible distributor, such as ntfy. Background polling takes over when no distributor is installed.
Aster Mail is free to use. Paid plans add storage, larger attachments, more aliases, and custom domains.
Source code: https://github.com/Aster-Privacy/Aster-Android
Your messages are encrypted on your device before they leave it. The server stores ciphertext and nothing else, so nobody at Aster can read your mail, scan it, or sell what is in it. There are no ads, no trackers, and no analytics anywhere in the app.
Private by design
- End-to-end encryption between Aster users, using a post-quantum ratchet protocol
- Zero-access architecture: the server holds only encrypted content
- No ads, no tracking, no telemetry, no profiling
- Open source under AGPL-3.0, so anyone can audit what the app does
Email aliases
- Create an alias for each site you sign up for, and turn one off when it starts getting spam
- See which alias a message arrived on, right in the message list
- Import and export your aliases
Your own domain
- Send and receive on a custom domain, with DKIM signing handled for you
- Buy a domain from inside the app
Everyday mail
- Folders, labels, categories, and search across your whole mailbox
- Swipe actions and a toolbar you can customize
- Templates, signatures, scheduled send, and auto-forwarding
- Blocked senders, sender filters, and an allow list
- Encrypted offline storage, so your mail is there without a connection
Security
- Biometric lock
- Two-factor authentication and a recovery key
- Active session management, so you can sign out a device you no longer have
Notifications
- Private mode hides the sender and subject on your lock screen
- Quiet hours schedule when notifications arrive
- Per-folder muting
This F-Droid build contains no Firebase or Google Play Services dependencies. Push notifications are delivered through any UnifiedPush-compatible distributor, such as ntfy. Background polling takes over when no distributor is installed.
Aster Mail is free to use. Paid plans add storage, larger attachments, more aliases, and custom domains.
Source code: https://github.com/Aster-Privacy/Aster-Android
负面特征
此应用有一些你未必喜欢的特征。 了解更多！
- 作者: Aster Communications Inc.
- 许可: GNU Affero General Public License v3.0 or later
- 网站
- 问题跟踪系统
- 源代码
- 构建元数据
- 可重复性状态
捐赠
版本
尽管下面提供了 APK 安装包的下载选项，但你应该注意，以这种方式安装将不会收到更新通知，这是一种不太安全的下载方式。 我们建议你安装使用 F-Droid 客户端。
下载 F-Droid-
arm64-v8aarmeabi-v7ax86_64该版本需要 Android 8.0 及以上版本。
此包由原始开发者构建并签名，并保证对应于此源代码 tarball。
-
arm64-v8aarmeabi-v7ax86_64该版本需要 Android 8.0 及以上版本。
此包由原始开发者构建并签名，并保证对应于此源代码 tarball。
-
arm64-v8aarmeabi-v7ax86_64该版本需要 Android 8.0 及以上版本。
此包由原始开发者构建并签名，并保证对应于此源代码 tarball。
新版本 1.0.13
This update improves how Aster Mail releases are built and verified. It has no visible changes.
新版本 1.0.11
Bug fixes and improvements:
- Aster Mail no longer stops in the background after you restart your phone.
- Upgrade screens show the correct plan limits.
- The schedule date picker offers only the next 28 days.
- Attachments in imported mail open as expected.
- A label's own chip is hidden when you view that label.
- Aster Mail no longer stops in the background after you restart your phone.
- Upgrade screens show the correct plan limits.
- The schedule date picker offers only the next 28 days.
- Attachments in imported mail open as expected.
- A label's own chip is hidden when you view that label.