Paul LütznerandClaude Opus 5
6c33316f33
One slider drove every translucent surface, and translucency multiplies: a composer at 0.7 over a pane at 0.7 left about a tenth of the wallpaper landing in the middle of the text being read. So the knob splits. Structural surfaces — sidebar, top bar, main and calendar panes — keep --pane-alpha. Floating ones — the compose window, modals, confirm dialogs, toasts and twelve menus — take --popover-alpha, and both floating utilities re-point --pane-alpha to it for their own subtree, so an inset strip inside the composer belongs to the composer rather than to the sidebar behind it. The guarantee is a floor, not just a default: 0.5, so a popover can never be made as see-through as a pane. Boxed spends the gap at 0.9 over its panes' 0.7 — about 3% of the background survives both layers instead of 10%. The old stored value is deliberately NOT copied across. Twelve of the sixteen floating surfaces never honoured it: `popover` has been hardcoded opaque since it was written, for exactly the illegibility reason being reported. Backfilling 0.7 would have introduced the fault in twelve places to preserve it in four. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
plMail
Self-hosted mail with a calendar beside it. Connect the mailboxes you already have — IMAP, Gmail, Outlook — and read them side by side in one inbox, on a server you own.
📖 Read the handbook →
Installing on Docker, Linux, WSL2, macOS or a NAS · every feature in detail · connecting Gmail and
Outlook, with the exact permissions to tick · how the internals work.
Also on the wiki and in docs/ — all three
are built from the same files.
What it is
A mail client you host yourself. It connects to the mailboxes you already have — IMAP, Gmail, Outlook — syncs them into your own PostgreSQL database, and gives them one inbox, one search box and one set of labels in the browser.
It is not a mail server: it doesn't receive mail from the internet or host your domain. Because everything is synced locally, search runs against your database, and your mail stays readable when a provider doesn't.
Highlights
- Every account in one place — IMAP, Gmail and Outlook side by side, sending aliases included. Credentials are encrypted before they touch the database.
- New mail arrives on its own — IMAP IDLE, Gmail and Outlook push, browser notifications.
- Search that means it — full text plus
from:,subject:,label:,has:,before:and friends, completed as you type. - Filters as a tree — any/all/none, nested, restated in plain English and counted against real mail before you save. Apply one to mail that arrived before it existed.
- A calendar beside the mail — two-way sync with Google, Microsoft and CalDAV, drag-to-move week grid, invitations answered in place, share and booking links.
- Files where you keep them — attach from and save to Drive, Photos, OneDrive, Dropbox, Nextcloud and Immich.
- Yours — two-factor auth, per-app JMAP passwords, 41 themes, English, German and Pirate.
A look around
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| Threads — replies collapse into one conversation. | Compose — rich text, autocomplete, undo send. |
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| Themes — 41 of them, light and dark. | Calendar — docked beside the mail, or its own page. |
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| Filters — counted before you save. | Admin — workers, push health, logs, queue. |
Screenshots use demo data — none of the accounts, senders or messages shown are real.
Install
Images are published for linux/amd64 and linux/arm64. Nothing to fill in first: the secrets are
generated on first start, and the public address is asked for on the setup screen.
Docker
git clone https://github.com/karatektus/pl_mail.git
cd pl_mail
docker compose up -d
Open https://localhost and create your account.
TrueNAS SCALE
- Create a dataset for plMail — say
yourPool/yourDataSet/plmail. - Open
truenas.compose.yamland change one line to that path:path_data: &path_data /mnt/yourPool/yourDataSet/plmail - Apps → Discover → ⋮ → Install via YAML, paste the file, install.
Reach it on port 30080 and put a reverse proxy in front of it. Everything else in that file works
as it is; each setting explains itself in place.
Then
Add an IMAP mailbox in Settings → Mail accounts and you're done. Gmail and Outlook need OAuth credentials from Google or Microsoft first — the handbook walks through both, including the optional Pub/Sub topic for instant Gmail delivery.
Back up two things, separately: the PostgreSQL data and
var/secrets/generated.env. The database holds your mail; the key inside that file unlocks the credentials in it. Keeping them apart is the point — and losing the key means the stored mailbox passwords are gone.
Contributing
Bug reports and pull requests welcome — see CONTRIBUTING.md for the dev setup, the test suites and the console commands.
License
AGPL-3.0.