Gridlink

app.gridlink
by Zapstore _@zapstore.dev

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

Republished from GitHub / F-Droid by the Zapstore main account.

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.

First release: Sep 20, 2026, 4 total releases.

Most recent release: Nov 2, 2026.

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Releases

  • Nov 2, 2026 2.1.1
    Gridlink Mail 2.1.1 Fixed: - The Calendar and Contacts screens now say why a sync failed, instead of staying blank and refusing to save with "No calendar found on the server yet". - Providers that keep calendars and contacts on a separate server from mail (GMX, for example) now work: enter that server under Settings, your account, "Calendar and contacts" (for GMX: caldav.gmx.net). - Calendar and contacts discovery checks the domain's DNS SRV records before guessing the address's own domain.
  • Nov 1, 2026 2.1.0
    Gridlink Mail 2.1.0 New: - Filter rules now work on IMAP accounts, on servers that offer ManageSieve. - Switch accounts by tapping the address at the top of the menu. - Colour presets in the menu: Graphite, Deep Blue, Ember, Forest and Sand. - Set how see-through the home-screen widgets are, in Settings, Appearance. - Import contacts from a .vcf file, on the Contacts screen. Anyone already in your address book is skipped. - Works with PGPony and other OpenPGP apps as well as OpenKeychain.
    More…
    Fixed: - A battery drain when an IMAP server dropped the connection. The app could spin a CPU core and never reconnect. - Bouncy Castle updated to 1.85 for two security advisories. Under the hood: Android Gradle Plugin 9.5, Gradle 9.7.1, SDK 37 (target SDK stays at 36), and current Compose, AndroidX and OkHttp.
  • Oct 12, 2026 2.0.0
  • Sep 20, 2026 1.0.0