Features
The full catalogue: from Mission Control and Catch-up through AI, tracking and sequences to encryption. Every feature shows the plan it starts at, plus an honest list of what’s still coming.
A full set of new features ships with the launch: from connecting other mailboxes, rules and the screener to a calendar, a mini-CRM and teamwork.
Add Gmail, Outlook and Office 365, iCloud, Yahoo, WP, Onet, Interia, o2 or any IMAP account. Read and send from them inside mbox with all its superpowers: AI summaries, tracking, follow-ups and sequences.
App passwords let you send from Thunderbird, Outlook and Apple Mail through mbox SMTP. Receiving over IMAP is coming soon.
Personal API tokens, an MCP server so AI agents such as Claude can work with your mail, and webhooks for events.
Send a file up to 2 GB as a link, with a password and an expiry date. You see who opened and downloaded it.
Every recurring subscription found in your mail in one place, with one-click unsubscribe or guidance on how to cancel.
Conditions and actions: if a mail matches, mbox labels, archives, stars, marks it read or routes it onward, with no forwarding.
Unknown senders wait in a lobby. You let them in or turn them away before anything reaches your inbox.
Set your dates and the AI drafts the reply in your tone. You review the draft before anything goes out.
Pin what matters, set aside what isn’t for today and mark threads to answer later, without losing them in the inbox.
Disposable aliases that forward mail to you without revealing your real address. Switch any of them off in a moment.
Turn a thread into a task with a due date or a note and keep it next to your mail, not in another app.
Day and week views, plus accepting or declining ICS invites in one click, straight from the email.
Receipts, orders, parcels and invoices sort themselves into your Wallet, apart from conversations, and are always at hand.
Bring your mail over from your existing account via IMAP, and take everything back out as MBOX or EML whenever you like. No lock-in.
Install mbox from the browser like an app and get push notifications for new mail and opens.
On-the-fly translation, Instant Intro for new contacts, a tone check before sending, auto-labels, auto-drafts and voice dictation.
A contact card with conversation history and keep-in-touch reminders, so important relationships don’t fade.
A workspace for up to 25 people, 5 shared inboxes, thread assignments and internal comments the customer never sees.
App passwords for desktop clients (SMTP), login alerts and an audit log in one place.
No feature in this category matches the filter.
An inbox that lines itself up. You decide; the AI only suggests the order.
Focus, Other, Updates, Newsletters and Social. Every thread also gets a 0–100 priority, so what matters floats to the top.
from:, to:, subject:, has:attachment, is:unread, is:starred, after:, before:, label: plus plain text. Precise, no guessing.
Colour labels, a star for the important, and snooze that brings a thread back tomorrow morning or next week.
Select many threads and archive, label, move or delete in one go.
Newsletter with a List-Unsubscribe header? We unsubscribe you instantly (RFC 8058), no forms on strange sites.
Drag, paste, send. Up to 25 MB per file, with inline preview and safe downloads.
⌘K opens the palette: search, jump, run commands. Plus j/k, e, r, c, g i and more; ? shows them all.
No feature in this category matches the filter.
Instead of a list of emails: a dashboard that says what really counts, and a mode where you clear the inbox card by card.
A number from 0 to 100 showing how much under control your inbox is. It rises as you reply and tidy up.
What’s left to zero, what’s done today and how many days in a row. You see progress before you can get discouraged.
Your reply time versus theirs, plus seven days of received, sent and opened email.
Two lists that change habits: threads you owe a reply to, and those where you’re the one waiting. With hours and days counted.
Today’s meetings, reminders for the next 48 hours and the assistant’s suggestions in one place.
One conversation at a time: summary, why it matters, and a suggestion (reply, archive, remind, schedule, unsubscribe). Decide in 5 seconds; shortcuts R E H M U.
Newsletters, updates and social in one short note, with a list of senders you can safely drop.
The week’s highlights, wins and loose ends in one paragraph, plus the numbers: received, sent, reply time, opens, meetings.
No feature in this category matches the filter.
Claude by Anthropic works when you ask, not behind your back. Everything below can be switched off.
One sentence, a few bullets and chips with what matters: amounts, deadlines, links, addresses, phone numbers, codes.
A long thread as a list of one-line steps and a clear hint at what to do next.
Urgent, to answer, waiting and due today. One page, refreshed every half hour or so.
Say what you want to say and get a draft in the tone you choose: neutral, formal, friendly, short or persuasive. With a subject line.
Shorten, expand, make it more formal or warmer, fix mistakes, turn it into bullets or translate.
Three short replies fitted to the thread. Click, tweak, send.
Ask in plain language and get an answer with citations to specific emails. ⌘. opens the Copilot from anywhere.
Describe what you’re after. mbox turns it into operators and shows how it understood you.
You write “I’ll send it Friday” and mbox remembers the date and prepares a draft. It also catches meeting requests and deadlines in incoming mail.
Optional, in the background: category, priority, one-line summary, deadlines and a phishing risk check for every new email.
A master AI switch, a separate auto-triage toggle and a live usage counter (100 actions on Free). Zero-access mail is invisible to the AI by design.
No feature in this category matches the filter.
Write once, send at the right moment, and keep the right to change your mind.
Rich text, attachments, a signature, sending from an alias and recipient autocomplete, showing when a message can be encrypted.
Pick a time and the email waits in Scheduled. Change the time or pull it back at any moment.
An undo window whose length you set yourself. The email returns as a draft before anyone sees it.
{{firstName}}, {{company}}, {{myName}}: one template, hundreds of personal emails. With your own shortcut and a usage counter.
No feature in this category matches the filter.
An inbox that remembers for you: the replies that never came and the promises that were made.
Set “in 3 days” when you send. If nobody replies, you get a reminder with a ready follow-up draft. If they reply: silence.
Write the text once and mbox sends it itself if there’s no reply. It stops the moment someone answers.
Open, due, done. Assistant reminders carry the source “AI”, your own say “you”, and any of them can hold a ready draft.
One view of “I promised” and “promised to me”, with deadlines and drafts, fed by sent and received email.
No feature in this category matches the filter.
You know who read it, when and on what. And which numbers you can trust.
A pixel for every recipient: how many times and when the message was opened. 50 tracked emails a month on Free.
Every link gets a counter, so you know which attachment, offer or date actually got attention.
The full event history for each person on a multi-recipient email: who opened, who clicked, who is silent.
Events say whether it was Apple Mail on an iPhone, Gmail in a browser or Outlook, plus an approximate country.
Apple Mail Privacy Protection and Gmail’s proxy open mail on their own. We flag those events so you don’t celebrate too early.
The event arrives the moment of an open, a click or a send-status change, without refreshing the page (SSE).
Sent, tracked, opened, open rate, average time to open and the hour recipients respond to most.
Switch tracking off per message or by default. Your own opens never count: the app strips the pixel and the server ignores your sessions. Remember your GDPR duty to inform.
No feature in this category matches the filter.
A series of emails that works while you’re away and ends the moment someone replies.
Day 0, +3, +5: each step has its own delay. An empty subject means a reply in the same thread. Up to 10 active on Pro.
A reply stops that contact automatically. Nobody gets a “reminder” after they’ve already answered.
Weekdays from 9:00 to 17:00 by default. Nothing goes out at night or on weekends.
Name, company and custom per-contact fields drop into subject and body, so every email reads as hand-written.
Enrolled, active, replied, finished, stopped, opens and reply rate.
No feature in this category matches the filter.
No more “how about Tuesday?” ping-pong. You offer free slots; the other side picks one.
Hours for each weekday, meeting lengths (say 15, 30, 60 min), a buffer between meetings and your time zone.
A public /m/your-name link with free slots. The guest books in seconds and needs no account. One link on Free, many on Pro.
After booking, both sides get an ICS invite that drops straight into the calendar.
Drop a block of proposed times with a booking link into the message in one click.
No feature in this category matches the filter.
Show someone a whole conversation without forwarding and without losing context.
One link instead of a forward. Set the expiry in days and decide whether to show attachments.
Revoke any link in one click, and a counter shows how often it was opened.
The decryption key lives in the URL fragment (#k=) while the server stores only ciphertext. With expiry and access revocation.
No feature in this category matches the filter.
Encryption you don’t have to take on faith: keys are born on your side, and trade-offs are spelled out.
Keys generated in the browser, the private key encrypted with your passphrase. Content encrypted to the recipients’ keys and yours.
For anyone without keys. A link plus a password, decrypted in the recipient’s browser. AES-256-GCM, PBKDF2-SHA256, 310,000 iterations.
Every incoming email is encrypted to your public key as it arrives. Only ciphertext stays on disk. The trade-off: the AI can’t see that mail.
An authenticator app (TOTP) plus one-time recovery codes. Passwords need at least 10 characters.
On every message you see whether the sender passed verification. Our outgoing mail is DKIM-signed.
A risk score and a list of reasons on every incoming email. Suspicious links get flagged.
A list of active sessions with device and IP. End any of them with one click.
We find a recipient’s public key for you: among mbox users or via WKD. You see whether the message can be encrypted.
Hetzner servers in Falkenstein, Germany, TLS everywhere, DKIM signing. No ads, no data trade and no AI training on your mail.
No feature in this category matches the filter.
From a single address to a whole company without switching tools.
Add a domain and the wizard walks you through the MX, SPF, DKIM and DMARC records. With Cloudflare you set them up in one click. One domain on Domena, 3 on Pro, unlimited on Business.
Every address on your domain lands in one inbox, even ones you never created. The Domena plan means 10 aliases, 30 GB and 2 connected mailboxes.
Extra addresses that land in the same inbox. 2 on Free, 10 on Domena, 20 on Pro.
Users, roles and company settings in one place. A basic version works today; we extend it in later phases.
One brand voice in every email: shared templates and signatures for the whole team.
Who changed what in company settings, and when. An extended log with SIEM export on Enterprise.
Company sign-in and data-leak protection for organisations with compliance requirements. Planned for Phase 3.
No feature in this category matches the filter.
An honest list of what isn’t here yet, with the roadmap phase. Details and status live on the Roadmap page.
Full IMAP access for Thunderbird, Outlook, Apple Mail and K-9 with autoconfig. App passwords and SMTP are already in the Security centre.
Windows, macOS and Linux on Tauri 2: small installers, notifications, mailto:, offline work.
iOS and Android with content-free push notifications (just an ID), decrypted locally.
HubSpot, Pipedrive and Salesforce: contacts, activity and tasks without retyping.
Availability in booking links computed from your real calendar, not just set hours.
An optional local model in the desktop app: triage and summaries without content leaving the device.
“Book a meeting with Anna”, “follow up with everyone who hasn’t replied”: plan, preview, your approval, execution, with an audit log.
The SPF, DKIM and DMARC state of your own domain, readable DMARC reports and alerts for broken records in one place.
No feature in this category matches the filter.
By the numbers
Two minutes, no credit card. You get a @mbox.ulewicz.space address, 15 GB and an AI that starts helping from your first email.
Free @mbox.ulewicz.space address · no ads · no card
