--- title: "Features" description: "Every feature in OpenEmail, shown working: catch-all addresses, your own domains, full-text search, AI over your mail, and agents over MCP." url: "https://openemail.uk/features" --- Features # Everything OpenEmail does, and how it does it. 56 things you can use today and 6 still to come. Only the ones still to come are marked, so an unmarked card is one that works. Every one of them is below, with what it actually does. 01 · 8 features, 1 still to come ## Domains & addresses OpenEmail is built around the domain rather than the mailbox. You point one at us, and every address on it is real. acme.com acme.dev studio.acme.com hello@ acme.com delivered billing@ acme.com delivered oct-2026-signup@ acme.com delivered anything-at-all@ acme.com delivered ### Catch-all addresses Every address on the domain receives, including ones that have never been created. One switch closes it. hello@ yourdomain.com delivered billing@ yourdomain.com delivered careers@ yourdomain.com delivered anything-at-all@ yourdomain.com delivered oct-2026-signup@ yourdomain.com delivered ### Multiple domains Point several domains at one inbox, subdomains included. acme.com acme.dev team.acme.com hey.acme.io ### DMARC policy A starter p=none record, printed to copy or written by a sync, never tightened for you. TXT \_dmarc.acme.com v=DMARC1; p= none; rua=… Optional watch only ### Temporary addresses Soon An address that works for a fortnight and then stops, so a signup cannot follow you. Catch-all already gives you a throwaway address for every signup, but it lives as long as the domain does. netflix-trial@acme.com 14 days stops working on a date you set ### Send as any alias Reply from the exact address the mail arrived on. to billing@acme.com from billing@acme.com ### Merged inboxes Read every address in one stream, or narrow to the two or three you actually work out of. hello@acme.com me@acme.dev support@acme.io one inbox ### Forward an address elsewhere Point any address, or everything a domain accepts, at an outside mailbox instead of this one. acme.com acme.dev studio.acme.com hello@ acme.com delivered billing@ acme.com delivered oct-2026-signup@ acme.com delivered anything-at-all@ acme.com delivered ### Workspace branding Put your own mark and logo in the sidebar, in place of ours. acme.com acme.dev studio.acme.com hello@ acme.com delivered billing@ acme.com delivered oct-2026-signup@ acme.com delivered anything-at-all@ acme.com delivered 02 · 8 features ## Reading & organising What happens between mail arriving and you deciding what to do about it. from:sarah invoice match match match ### Full-text search Forgiving words and operators like from: and has:, inside the folder you are reading. invoice from stripe Stripe · Invoice #4021 Stripe · Receipt for Aug ### Search in plain language Ask the command palette for what you want and it writes the query. from:sarah invoice match match match ### Read in your language A message you cannot read, turned into a language you can, without leaving it. de → en Die Rechnung ist am Freitag fällig. The invoice is due on Friday. the original stays one tap away ### Labels Name a label, pick one of six colours, and filter the list down to it. Invoices Recruiting Newsletters ### Thread notes Keep a private note attached to a thread. 18 messages → 1 summary Three people agreed the launch slips to the 14th. Ali owns the changelog; Sarah needs copy by Friday. ### Analytics & graphs What your mailbox is actually doing, drawn rather than guessed at. 62 on Monday · 38 still waiting on you ### Recipient suggestions The people you already write to, offered as you type. SR AK NM JD PL +1,240 sarahreyes@acme.com ### Keyboard-first The palette is ⌘K, the assistant is ⌘0, and the list moves under the arrow keys. next thread 03 · 14 features ## Writing & sending The composer, and everything attached to the moment you hit send. Re: Invoice 0421 Thanks. Invoice attached, due the 30th. Send or schedule for 8:00 ### Templates A body written once, versioned, and sent many times: from the composer, from your own code, or by an agent. Intro Invoice Follow-up Hi Sarah, good to meet you at ### Files Every attachment this mailbox holds, in one place you can search, download and clear out. Re: Invoice 0421 Thanks. Invoice attached, due the 30th. Send or schedule for 8:00 ### Workspace and address settings Your account sets the defaults. A workspace can answer differently, and any address can have its own signature and tracking. Re: Invoice 0421 Thanks. Invoice attached, due the 30th. Send or schedule for 8:00 ### Signature One sign-off for every address, and a different one for any address that needs it. Re: Invoice 0421 Thanks. Invoice attached, due the 30th. Send or schedule for 8:00 ### Writing tools Formatting, inline completion and emoji shortcodes in the composer. Re: Invoice 0421 Thanks. Invoice attached, due the 30th. Send or schedule for 8:00 ### Send in theirs Write in your own language and have it arrive in the recipient’s. Got it. I’ll send it over on Friday. ja de fr they read 承知しました。金曜日にお送りします。 ### Meetings & calendar A calendar at /mail/calendar in month, week and day views, holding both your meetings and the mail you have queued to go out later. M T W T F Tue 10:00, Design review. Meetings and queued mail, one grid ### Drafts Autosaved three seconds after you stop typing, and reopened from the Drafts folder with the recipients, the subject and the body intact. The attachments and the From address stay behind. Re: Design review Thanks. Shipping the fix this afternoon. Send no mouse, no menus ### Scheduled send Write it now, land it when they are awake. Tomorrow, 8:00 queued, not sent ### Undo send A window to change your mind, and the composer comes back exactly as it was. Tomorrow, 8:00 queued, not sent ### See when mail you sent was opened Whether a message you sent has been opened, when, how many times and which of its links were followed. On unless you turn it off, and plain about the readings it cannot get. Re: Invoice 0421 Thanks. Invoice attached, due the 30th. Send or schedule for 8:00 ### Tracking on your own domain Tracked links and the open pixel on a subdomain you choose, such as links.yourdomain.com, instead of the OpenEmail address. Re: Invoice 0421 Thanks. Invoice attached, due the 30th. Send or schedule for 8:00 ### Files on your own domain Download links for the files you send on a subdomain you choose, such as files.yourdomain.com, instead of the OpenEmail address. Re: Invoice 0421 Thanks. Invoice attached, due the 30th. Send or schedule for 8:00 ### Attachments Pick them with the paperclip or paste them in. A pasted image lands in the body rather than the file list, and a file dragged onto the composer is not attached at all. On an OpenEmail mailbox incoming files sit in object storage, one object each, and opening a thread pulls every one of them. contract\_v3.pdf 2.4 MB brand-kit.zip 18 MB 04 · 6 features, 1 still to come ## AI Everything here runs against your own mailbox and is yours to switch off. The prompts are readable and editable. What did Sarah decide about the launch? AnswerShe moved it to the 14th and owns the changelog. Included on every plan. ### Ask your inbox A chat that can act, not just answer. On every plan, Free included. What did Sarah decide about the launch? AnswerShe moved it to the 14th and owns the changelog. Included on every plan. ### Subject lines Write the body, and the subject writes itself. Subject Invoice 0421: due the 30th ### Draft from a note Give it the gist and get the whole body back, in the first person as you. Re: Invoice 0421 Thanks. Invoice attached, due the 30th. Send or schedule for 8:00 ### Your writing style Drafts are shaped by how you actually write. What did Sarah decide about the launch? AnswerShe moved it to the 14th and owns the changelog. Included on every plan. ### Editable prompts Read and rewrite the system prompts OpenEmail uses. What did Sarah decide about the launch? AnswerShe moved it to the 14th and owns the changelog. Included on every plan. ### Agents on the inbox Soon Triage, labelling, summaries and first-pass replies, done before you open the tab. Summaries are the one piece that runs on arrival today; triage, labelling and first-pass replies do not. /threads?query=invoice { "threads": 12 } Same mailbox, whether a person or a program is holding it. 05 · 5 features ## Safety & authenticity Two questions about a message you were not expecting: is the sender the domain it claims to be, and did a person write this. Both are answered on the message itself, next to the sender, rather than in a filter that quietly disappears things. receipts@ stripe.com SPF DKIM DMARC verified sender ### Verified sender A mark beside the sender when the sending domain’s published records line up. receipts@ stripe.com SPF DKIM DMARC verified sender ### Sender pictures A real picture for everyone you correspond with when one can be found, and a mark seeded on their identity when it cannot. receipts@ stripe.com SPF DKIM DMARC verified sender ### Phishing & spam filtering Mail the sending domain itself disowns lands in Spam rather than the inbox. receipts@ stripe.com SPF DKIM DMARC verified sender ### Sender research & look-alike domains Who is this, in fifty words, and is the domain a look-alike? receipts@ stripe.com SPF DKIM DMARC verified sender ### Written by AI A label on the message when the words look generated rather than written. I hope this email finds you well. I wanted to reach out regarding the proposal we discussed last week. Our approach is designed to be robust, scalable, and straightforward to adopt. Moreover, it is not just about the tooling, but about the outcomes it enables for your team. In conclusion, please do not hesitate to reach out if you have any questions. 70% likely written by a model 06 · 3 features ## Filters & blocking Spam filtering decides what is junk. This is the other half: what you have decided you do not want, however legitimate it is and whoever it is from. deals@spammy.io blocked sender anyone@spammy.io blocked domain hr@recruit.co language filter ci@acme.dev your rule → archive ### Block a sender or a domain One address, or everything from a domain, stopped before it reaches you. deals@spammy.io blocked sender anyone@spammy.io blocked domain hr@recruit.co language filter ci@acme.dev your rule → archive ### Bad-language filter Mail carrying the words you do not want to read does not open in front of you. deals@spammy.io blocked sender anyone@spammy.io blocked domain hr@recruit.co language filter ci@acme.dev your rule → archive ### Rules you write yourself Your own conditions, and what should happen to anything that matches them. deals@spammy.io blocked sender anyone@spammy.io blocked domain hr@recruit.co language filter ci@acme.dev your rule → archive 07 · 5 features, 1 still to come ## Agents, API & MCP OpenEmail is meant to be operated by software as well as by people. The mailbox is the same either way. /threads?query=invoice { "threads": 12 } Same mailbox, whether a person or a program is holding it. ### MCP server Point Claude, or any MCP client, at your mailbox. /threads?query=invoice { "threads": 12 } Same mailbox, whether a person or a program is holding it. ### OAuth for third-party clients Soon Self-service client registration with PKCE, so an app can ask for access properly. Consent and revocation are here; scope is not, so a token reaches your whole mailbox rather than the part an app asked for. /threads?query=invoice { "threads": 12 } Same mailbox, whether a person or a program is holding it. ### REST API A documented HTTP API with issuable, scopable, revocable keys. /threads?query=invoice { "threads": 12 } Same mailbox, whether a person or a program is holding it. ### Typed SDKs A TypeScript client first, then the rest. /threads?query=invoice { "threads": 12 } Same mailbox, whether a person or a program is holding it. ### Webhooks Tell your endpoint when mail arrives, instead of making you poll. /threads?query=invoice { "threads": 12 } Same mailbox, whether a person or a program is holding it. 08 · 4 features ## Workspaces & team A workspace holds your domains, the mailboxes on them, and the people who read them. Sharing is per address or per whole domain, and a whole domain covers every address made on it later. billing@acme.com shared SSarah AAli JJamie NNadia No seat added. The bill does not move. ### Share an address Hand billing@ to the person who does the billing. share with sarah@acme.com SA AL NI have access ### Scoped visibility One address means one address. Sarah support@ Alex billing@ Nina careers@ read, or read and send as it, with nothing else visible ### Roles & permissions levels A role says what somebody may do; an address grant says what they may do it to. Sarah support@ Alex billing@ Nina careers@ read, or read and send as it, with nothing else visible ### Invitations Share with someone who has not signed up yet and have them invited. billing@acme.com shared SSarah AAli JJamie NNadia No seat added. The bill does not move. 09 · 9 features, 3 still to come ## Privacy & ownership Privacy first is a claim every mail company makes, so here it is as a list of things you can go and check: what is stripped out of a message before you see it, what is never fetched on your behalf, and what happens to your mail when you stop paying us. 1 Last domain removed 2 Every message purged 3 Nothing kept back ### Tracking pixels stripped The invisible image that tells a sender you opened their mail is gone before you see the message. tracking pixel stripped hidden preheader stripped remote image stripped 0left to phone home ### Remote image control Stop a sender fetching anything from their own server while you read. tracking pixel stripped hidden preheader stripped remote image stripped 0left to phone home ### Choose which emails we send you Per-category switches in Account → Notifications, and the ones that matter are honestly marked as unswitchable. 1 Last domain removed 2 Every message purged 3 Nothing kept back ### Your mail on object storage Full message bodies and attachment bytes on R2, indexed per mailbox. Object storage 12% streamed, never re-encoded ### Bring your old mailbox Soon Arrive with the mail you already have, whether an archive exported from wherever it lives now or the account itself, threaded as it was and filed where it belongs. There is no importer of any kind yet; the one part already solved is threading, because imported mail that keeps its original headers threads itself alongside mail that arrives later. 1 Last domain removed 2 Every message purged 3 Nothing kept back ### Take your mail with you Soon One download with everything in it: every message and attachment in a format another mail app can open, plus your contacts, labels, rules, templates and calendar. Nothing exports today: the only things that leave through the product are one attachment at a time and your own encryption key, and what an archive can carry is a rebuild rather than the original bytes. 1 Last domain removed 2 Every message purged 3 Nothing kept back ### Transport encryption Mail moves over TLS on the hops we run, and transport alone never turns the padlock green, because nothing on this backend can read the transport off a delivery. readable where it lands Wire transfer approved, details attached. you tls openemail.uk starttls? them ### Encryption at rest Soon Every field of a message sealed before it is written down (body, subject, addresses and attachment bytes), so a copy of the database is ciphertext rather than mail. Only the credentials you hand us are sealed this way today; bodies, subjects and attachments are stored as they arrived, and the envelope that will seal them is built but deliberately wired to nothing. readable where it lands Wire transfer approved, details attached. you tls openemail.uk starttls? them ### End-to-end encryption OpenPGP keys made in your browser. Mail you send to another OpenEmail address can be sealed before it leaves the tab, and sealed mail addressed to you opens in the reading pane, decrypted on your machine. The keys are never ours to hand over. 1 Last domain removed 2 Every message purged 3 Nothing kept back