Organize mail in your own words
Say what you want, the way you'd say it to an assistant. Mailsort turns it into folders and rules you can read, edit, or remove at any time.
- No filters to build
- Rules always beat the AI's guess
Your inbox,
calmly under control.
Tell Mailsort how you want your email organized. Review the folders it suggests, then let it keep new mail sorted.
100 emails free, one time. No card required.
Outlook and Microsoft 365 available now. Gmail in limited beta.
- You approve the folder plan before anything moves.
- Sorts from sender, subject and preview. Message contents are never stored.
- Never sends, replies to or deletes email.
Interactive demoExample inbox · fictional messages
You
“Put invoices in Finance and newsletters in Reading.”
Inbox6
Northwind Energy
9:41
Your September invoice is ready
The Weekly Sift
8:15
Five good reads for a slow Sunday
Maya Chen
7:58
Dinner on Friday?
Ledgerly
Yesterday
Invoice #4821, due October 30
Field Notes Digest
Yesterday
Issue 112: Slow software
Harbor Studio
Mon
Invoice for August retainer
Six messages, unsorted.
Example inbox with six unsorted messages.
- 1You describe it
- 2Folders are proposed
- 3You approve
- 4Mail is filed
How it works
Three steps, and you approve the middle one.
You stay in charge of the plan. Once it's approved, Mailsort keeps new mail filed on its own.
- 1
Connect
Sign in with Microsoft, or with Google while Gmail is in beta. Mailsort gets access to organize your mail. It never sends, replies to or deletes anything.
- 2
Review your plan
It reads the senders and subjects of your recent mail and suggests folders. Change anything in plain English. Nothing moves until you approve.
- 3
Keep mail organized
New mail is filed as it arrives. Recent mail is caught up too: the last 7 days on Free, 14 on paid plans. Anything uncertain waits in Review, and every move can be undone.
What Mailsort will never do
Limits built into how Mailsort works, not settings you have to find.
- Compose or send an email
- Reply to anyone on your behalf
- Delete a message, ever
- Touch mail outside your catch-up window
- Store the contents of your mail
- Move something you can't move back
Why Mailsort
A tidy inbox without learning a new one.
Mailsort doesn't replace your email app. It files mail inside the one you already use.
Keep useful mail easy to find
Folders are created in Outlook or Gmail itself, so everything is where you already look, on every device. In Gmail you can also label mail and leave it in your inbox.
- Works in the app you already use
- Nothing to install
Stay in control of what changes
Every filed message comes with a one-line reason. Uncertain mail waits in Review. Any move can be undone, and each correction teaches Mailsort for next time.
- Undo one message, or a whole day
- Pause sorting whenever you like
Starting points
Shaped around the mail you actually get.
Mailsort starts from the closest example and adjusts it to your inbox. Pick one to see what that can look like.
Personal
Receipts, travel, bills and newsletters, out of the way.
Example folders
- Receipts
- Travel
- Bills
- Newsletters
- Personal
Example messages
- → Travel
Brightline Air
Your trip to Lisbon is confirmed
- → Receipts
Parcel & Pine
Receipt for order 20931
- → Bills
City Water
Your October bill is ready
- → Newsletters
Morning Letters
This week in small design
Examples with fictional senders. Your own plan is drafted from your mail, and you approve it before anything moves.
Teams
A shared workspace, not just more seats.
Its own folders, its own rules, and the mailboxes nobody owns personally. $14.99 per person per month.
Your personal workspace stays yours — nobody on a team can see it. Inside a team workspace, admins can see which folder a message was filed into, but not what it says: Mailsort never stores the contents of an email, so there is nothing there for anyone to read.
Shared mailboxes, sorted once
info@, billing@, support@ — the addresses several people watch and nobody owns. Mailsort files them the same way every time, so the person who opens it next is not starting from a pile.
One structure, not one per person
Agree the folders once and everyone's mail lands in the same places. New hires inherit it on day one instead of inventing their own.
Rules that apply to everybody
"Anything from a client domain goes to Clients" is written once by an admin and holds across the workspace. People can still add their own on top.
Roles that match how work actually splits
Owners handle the bill. Admins run the mailboxes and the rules. Members sort their own mail and help with the shared boxes.
One invoice, one place to cancel
Per seat, added and removed as people join and leave, instead of five personal subscriptions on five personal cards.
Pricing
Less email filing. More time for your work.
Automatically organize incoming email into folders you choose. See an example.
Try it on 100 emails, free.
No credit card required. The 100 emails are a one-time trial, not a monthly allowance — enough to watch it sort your real mail and judge whether the judgement is any good.
Pro
For everyday emailKeep your everyday email organized.
3,000 emails/month · 3 mailboxes
$9.99/month
Billed monthly
- Rules you edit in plain English
- Learns every time you move a message
- Catch-up over the last 14 days
Plus
More room for busy inboxes.
8,000 emails/month · 5 mailboxes
$19.99/month
Billed monthly
- Everything in Pro
- Room for five mailboxes, not three
- A larger assistant allowance
Team
Sorting for your whole team.
5,000 emails per seat/month, pooled across the team
$14.99/seat/month
Billed monthly, per seat
- Shared mailboxes like info@ and billing@
- Rules that apply across the team
- Owner, admin and member roles
No automatic extra charges. We warn you before your allowance runs out. At the limit, sorting pauses and new mail stays in your inbox.
Prices in USD. Cancel any time and keep your plan until the end of the period. Team is priced per seat — what a team workspace includes.
Showing monthly prices.
Enterprise · priced per agreement
Everything in Team, with limits set by agreement. A signed DPA and your security review. Data region, retention and an uptime commitment. A named contact for support and escalation. Tell us what your review requires and we will scope it. Seat count, region and the SLA all change the price, so we quote it rather than list it.
Compare every limit
Side by side, straight from what the app enforces. Nothing is hidden behind a sales call except Enterprise.
| Feature | FreeFree | Pro$9.99/mo | Plus$19.99/mo | Team$14.99/seat/mo |
|---|---|---|---|---|
| Emails sortedEvery message we file, send to review, or decide to leave alone | 100 once | 3,000 a month | 8,000 a month | 5,000 a month per seat |
| Catch-up on arrivalHow far back it sorts when you connect, up to 2,000 emails | 7 days | 14 days | 14 days | 14 days |
| Mailboxes | Up to 1 | Up to 3 | Up to 5 | Up to 10,000 |
| Folders | 3 | As many as you like | As many as you like | As many as you like |
| Ask Mailsort messagesDescribing folder and rule changes in plain English | 75 total | 300 a month | 750 a month | 300 a month per seat |
| People | Just you | Just you | Just you | Up to 100 |
| Shared mailboxesinfo@, billing@, support@ | ||||
| Rules across the team | ||||
| RolesOwner, admin and member |
Which email providers work today?
Outlook.com, Hotmail and Microsoft 365 work today, with Microsoft's standard consent screen. Gmail is in limited beta: until Google finishes reviewing Mailsort, it shows an “unverified app” warning and places are limited. What the Gmail warning means.
What email information does Mailsort process?
To file a message, Mailsort uses its sender, subject and date, plus the short preview line your mail provider already generates. The sender, subject and preview are sent to Anthropic's model to pick a folder, and the preview is discarded once the decision is made. Mailsort stores the sender, subject, date, the folder chosen and a one-line reason. It never stores message bodies or attachments. Privacy policy.
Does anything move before I approve?
No. Connecting a mailbox starts a scan of recent senders and subjects, which moves nothing, and a proposed folder plan. Folders are created and mail is moved only after you approve that plan. Afterwards you can pause sorting, and undo any move, at any time.
How far back does sorting go?
Free catches up on the last 7 days of mail, and paid plans on the last 14. That first catch-up stops at 2,000 emails, so a very busy mailbox files the most recent of them rather than all of them. From then on, new mail is sorted as it arrives, and anything older than the window is never touched.
What counts as an email sorted?
One email counts once, the first time Mailsort makes a decision about it: filing it into a folder, sending it to review, or deciding to leave it where it is. Whether that decision came from one of your rules, from a sender it already recognises, or from the model makes no difference to the count.
Do rules and remembered senders count?
Yes. A decision is a decision however it was reached, and most mail is settled by a rule or a sender Mailsort already knows rather than by the model. Counting only the model's work would make the number on your dashboard mean something different each month.
Do the setup scan, retries and undo count?
No. The scan that proposes your folders reads mail without filing any, so it counts nothing. A message already decided is never counted twice, however many times a job retries. Undoing a move gives you the mail back and does not cost another email.
What happens when I reach my allowance?
Sorting pauses and new mail simply stays in your inbox, untouched. Nothing already filed moves, nothing is deleted, and you are never charged extra automatically. You can upgrade to carry on, or wait for the allowance to renew. We email you when you are four fifths of the way through, so it should not arrive as a surprise.
When does the allowance renew?
On your billing date — the day of the month you subscribed — not on the first of the month. Your dashboard shows the exact date. Free is different: its 100 emails are a one-time trial and do not refill.
Will I ever be charged extra automatically?
No. There is no overage billing and no way to be charged for going over. Mailsort pauses instead, and any change to what you pay is one you make yourself.
What happens when the free allowance runs out?
Free sorts 100 emails once; the allowance doesn't refill. When it runs out, sorting stops. Your folders and filed mail stay exactly where they are, nothing is deleted, and nothing is charged unless you choose a plan.
How does cancellation work?
Cancel any time from Billing, which opens Stripe's customer portal. You keep your plan until the end of the period you've paid for and aren't charged again. Time already paid for isn't refunded part-way through a period. Terms.
Give your inbox a calmer default.
Connect a mailbox, review the plan, and approve it when it looks right. 100 emails free, no card.