Everything it does, and where it lives.

Envelopes grouped by day

The date on the face of the envelope: today the time, any other day the date with its hour.

A time rail in days, weeks and months

Each band says “and N more” instead of stretching the desk.

Thread piles that untie

The messages of one conversation are tied under a seal and fan out when you touch it.

Mailbox by group

A flag holds the envelopes of a day, a week or a month, and brings them back when lowered.

Three views of the same mail

Desk of envelopes, conversation timeline, and a triage board you can drag on.

Multi-select with bulk actions

Archive, move, label, mark, burn and export in one go.

Trash with a countdown

Every envelope shows the days it has left, the last day pulses, and what is about to go is announced.

Burn one mail or the whole trash

With a confirmation, the flame in sight and an undo in the notice.

The envelope can be dressed

Three sizes, five papers — white, cream, kraft, yellow and airmail — and ageing by date.

A configurable pause before the sheet appears

How long it takes between opening the envelope and seeing the letter is yours to choose.

Letters in their own window

Several at once on the desktop, with the size remembered from one to the next.

Dispatch mark

The envelope of a mail you answered stays stamped with how it went out: replied, to all, forwarded.

Inbox

What arrives without a label or a box lands in the inbox, never in Archive.

Archive

Only what was archived. Archiving on Gmail removes the server label, so inbox and archive agree.

Unlimited accounts with a unified inbox

Each tab carries the name, the colour and how much is unread.

Any provider

Six presets, autoconfiguration by domain, and a real incoming and outgoing test, separately.

A colour per account

The edge of the envelope takes its account's stripe, and the bars can follow the active account.

IMAP, SMTP and POP3

IDLE push with reconnection and a fallback poll every two minutes.

Gmail and Microsoft Graph OAuth

With PKCE and the grant given in the browser; the app password stays available.

Server labels

Gmail and IMAP labels are read and filtered like app labels, without moving the mail.

The band of a mailbox that stopped working

Which account failed, why and when, with the button that asks for the permission again.

Boxes

Per account, with five label styles, its own envelope size, and an undo that returns the mail to the inbox.

Rules as a visual flow

Conditions by sender, subject, message or newsletter, with the action in sight.

Run a rule over what already arrived

It says how many mails it touched, and one gesture undoes it.

Export and import rules

A file of its own, with the labels and boxes it needs resolved on import.

Label, move, archive, snooze

From the envelope, the letter or the right button — in bulk too.

What is snoozed comes back and says so

It returns to the inbox unread and fires the same alert as an arrival, with its “Back” mark.

Mute a thread or a sender

With a reminder that muting deletes nothing.

Year, month, week, day and agenda

The week with a 24-hour rail, the day with blocks as tall as their duration.

Event editor

Place, description, guests, several alerts and daily, weekly, monthly or yearly repetition.

Series expanded by occurrence

Editing or deleting asks “just this one / the whole series”, and the series keeps its exceptions.

Real .ics invitations

They are created, updated by their identifier, answered and cancelled.

Meetings detected, and “Join”

Teams, Zoom, Meet, Webex and Jitsi, read from the .ics or the mail body.

Contacts dragged onto a day

From the book to the day or to a half-hour slot, with the person already invited.

Calendar alerts

Snooze five minutes or dismiss, without touching the event; do-not-disturb holds them and gives them back.

How important an appointment is

Four levels with their colour, drawn as a bar along the block.

Icons on events and holidays

A library of animated SVGs — the ones in the product and the ones in the folder you pick — with one icon per event and per holiday. The drawing runs no scripts and reaches no network.

Country holidays, and your own

They are fetched per year, stored, and read from the copy offline: name in the cell, count per month and, if you want, the ones you add by hand.

The day's weather in the cell

Animated symbol and temperature on each day of the month and of the week, for the country and province you choose; tap the weather for humidity, pressure, UV, fog and wind with its direction.

Reply, reply all and forward with the format intact

The original comes in quoted with its HTML, its images and its signature, not as plain text.

Per-account signatures, with an image

A logo or a scanned signature travels inside the body and leaves with the signature.

Templates with placeholders

{{key}} and a button that asks for the value and writes it where the cursor is.

Images inside the body

On the line where you put them, with Ctrl+V for a screenshot and four size steps.

Attachments that travel with their bytes

From the disk, from another letter or dragged from the mailbox; the draft keeps them when reopened.

Recipient autocomplete

To, CC and BCC, with the arrow keys and no turning around at the edge.

Save a contact while writing

The list offers “Save to contacts” without closing the draft.

Real sending, with failures in sight

A rejection leaves the message in Outbox with its code and a growing wait: 30 s, 2 min, 5 min, 15 min, 1 h.

Scheduled sending you can cancel

What waits lives in Outbox and what is due goes out when the app opens.

The composer in its own window

Outside the app, with mail open next to it and attachments you can drag onto it.

Ask on close

Stay, save to Drafts or discard. Or save alone 0.9 s after the last keystroke.

Undo a send

The send has its choreography and its window to regret it.

Add, edit and delete with undo

Saving the same person twice fixes the name instead of duplicating.

Senders not yet saved

Up to twelve addresses that wrote and are not in the book, with a button that fills the form.

Export the book

vCard 3.0 for Outlook, Apple and Gmail; CSV for Excel; and its own JSON, which comes back identical.

The system alert and the animated envelope

The two free shapes: discreet, with sender and subject, and a click opens the letter.

All seven alert styles

Mailbox, bun, folded, stamp and strip, besides system and envelope.

The alert can be tuned

Corner, size, envelope paper, wax, mailbox metal, duration, stack and lead time.

Sound and volume

Paper, bell or knock, and silence when you want silence.

Silence in full screen

With another app filling the screen the alert does not show: it queues and is summarised when you return.

Do not disturb

It silences everything and discards, without leaving a parallel inbox.

Remote content blocked per letter

The HTML is drawn sanitised until you allow it for that letter, and the permission does not carry to the next.

Tracker count and block list

It counts every resource the mail asks for elsewhere; the list is a rule with its own action.

Arrival signals report

A display name from another domain, a foreign Reply-To, a mixed-alphabet domain, a link that does not go where it says.

Attachment gate

The declared type that belies the name, and what an archive carries inside, read without opening it.

Scanning before saving

AMSI, a local ClamAV or an API by hash; with no engine, “unscanned” is a first-class answer.

Verified PGP

Real signatures with rPGP; with no key it does not say “broken”, it says “unverified”.

Threats view

What an engine flagged, with its verdict and the way into the mail. It moves and deletes nothing.

PIN lock

The salt and the derivation are stored, never the PIN.

Credentials in the system keychain

A mailbox password does not live in the mailbox.

Out as .mbox and .eml

A whole folder or a single mail, written by the same module that reads them back.

In from Thunderbird, Apple Mail or Outlook

.mbox, .eml and .pst; each .pst folder comes in as a box with its path.

Backup and restore the mailbox

A complete file, saved in the folder you choose, that can be read back.

Attachment cache on disk

It fills with every attachment opened or saved, and “Open folder” really opens it.

Automatic stamps

Junk and advertising, with a catalogue you extend with your own condition.

Your own motifs

A workshop with a palette of fifty drawings, colour and name.

Stamp from the open letter

And create the rule in the same step: sender, name, subject or newsletter.

Threat stamp

The first one in the corner when an engine flagged the attachment.

Light and dark theme

And the colour of the top bar and the spine: five presets and one of your own.

Spanish and English

The whole interface, not just the menus.

Audited accessibility

An accessible name on every control, keyboard traversal and high contrast.

Right button everywhere

Envelope, letter, contact, day, event, attachment, box and folder, with what does not apply in sight.

Command palette and global search

It searches the current account or all of them, and every result says which account it is from.

A tour the first time

Nine chapters and thirty-four steps that bring the screen to the place the chapter is about.

Offline inbox

The mailbox lives on the machine; without a network you still read, search and export.