Gridlink Mail

Gridlink Mail

A fast, private JMAP and IMAP email client. No ads, no tracking, no Google.

tatelink Email

Download (5.9 MB)

Screenshots

Screenshot of Gridlink Mail Screenshot of Gridlink Mail Screenshot of Gridlink Mail Screenshot of Gridlink Mail

Description

Gridlink Mail is an email client built for JMAP, the modern successor to IMAP. It syncs faster, uses less battery and less data, and was designed for phones rather than adapted to them. It speaks classic IMAP and SMTP too, so it works with any standard mail provider.

There is no Gridlink account and no Gridlink server. The app talks only to the mail server you configure. It collects nothing, contains no ads, no tracking and no Google libraries, and it is free software under the GPLv3.

Features

* JMAP mail, with IMAP/SMTP as a fully supported alternative
* Contacts and calendar over JMAP, with CardDAV and CalDAV fallback
* Autodiscovery: type your address and let it find the server, or pick the protocol yourself
* Remote images blocked by default, so a message cannot phone home unless you let it
* OpenPGP support
* Self-hosted friendly, including servers using a self-signed certificate
* Two-pane layout on unfolded and tablet-sized screens
* Swipe actions, undo send, scheduled send and threaded conversations

A note on this build

Gridlink Mail is a fork of Sterna Mail by emon (https://codeberg.org/emon/sterna-mail), reused under the GPLv3. The mail engine, sync layer and OpenPGP support are emon's work; this fork rebuilds the front end and the setup flow. It is not an official Sterna release and emon does not support it. If you want the original, upstream is the better-tested and actively maintained app.

What’s new (2.0.0)

Gridlink Mail 2.0.0. Two fixes, nothing new to learn. (The jump from 1.0.0 is housekeeping: it keeps Gridlink's version numbers from colliding with the project it was forked from.)

- Syncing no longer asks the server for more mail per batch than it is willing to hand back, so large folders fill in reliably.
- Settings is drawn with the same palette as the rest of the app instead of its own.

Versions

Version Date Size Requires Android Download
2.0.0 current
a441a766ceeb5d4d…
 2026-10-12 5.9 MB API 26
1.0.0
3ca4b25dc6a9d91f…
 2026-09-20 5.9 MB API 26

Permissions

What the app asks the system for. Android only grants sensitive access after you confirm it.

  • Internet accessSend and receive data over the internet.
  • Network stateCheck whether and how the device is connected.
  • NotificationsShow notifications.
  • Read contactsAccess the address book.
  • Change contactsCreate and change address book entries.
  • Read calendarRead appointments.
  • Change calendarCreate and change appointments.
  • Sync settingsRead synchronisation settings.
Show 8 more permissions
  • Change syncTurn synchronisation on and off.
  • Foreground serviceKeep running in the background, visible in the status bar.
  • FOREGROUND_SERVICE_SPECIAL_USE
  • Run at startupStart automatically after the device is switched on.
  • BiometricsUnlock with fingerprint or face.
  • FingerprintUnlock with a fingerprint.
  • Prevent sleepingKeep the device from going to sleep.
  • gridlink.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

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