Aster Mail: Encrypted Email
Private email app with end-to-end encryption, aliases, and custom domains
新版本 0.6.193
What's new:
- Your inbox opens faster when you start the app.
- Encrypted messages open faster after the first one.
- Contact photos you saved appear as sender avatars.
Fixed:
- New messages and replies leave one blank line between your text and your signature.
- Your inbox opens faster when you start the app.
- Encrypted messages open faster after the first one.
- Contact photos you saved appear as sender avatars.
Fixed:
- New messages and replies leave one blank line between your text and your signature.
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
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 0.6.192
What's new:
- You can sort folders A to Z and expand or collapse all of them at once.
- You can open password-protected PDFs and see Cc and Bcc in message details.
- You can choose the app language separately from your phone language.
Fixed:
- The app refreshes your session before it expires, so you stay signed in.
- When a message fails to send, the app tells you why.
- Images that you paste into a message send as attachments.
- You can sort folders A to Z and expand or collapse all of them at once.
- You can open password-protected PDFs and see Cc and Bcc in message details.
- You can choose the app language separately from your phone language.
Fixed:
- The app refreshes your session before it expires, so you stay signed in.
- When a message fails to send, the app tells you why.
- Images that you paste into a message send as attachments.
新版本 0.6.191
What's new:
- If your account is suspended, the app tells you why and lets you appeal.
Fixed:
- Categories show their unread counts again in the menu.
- Sending a message with large attachments no longer freezes the screen.
- Your inbox and messages load faster and the app stays responsive.
- Messages you mark as read or unread keep that state instead of switching back.
- If your account is suspended, the app tells you why and lets you appeal.
Fixed:
- Categories show their unread counts again in the menu.
- Sending a message with large attachments no longer freezes the screen.
- Your inbox and messages load faster and the app stays responsive.
- Messages you mark as read or unread keep that state instead of switching back.





