01
Reads with intent
Every incoming letter is read in full, weighed against the categories you defined, and scored. Nothing is classified by accident, and nothing is sent on your behalf.
Vercel AI SDK · structured output
Vol. 01 · Issue IV№ 00116 April 2026
An organizer for Outlook
Inbox,
quieted.
A small, opinionated assistant that reads, sorts, and files your Microsoft 365 mail, by the rules you set, in the language you think in, without ever sending a word on your behalf.
- Microsoft 365Native Graph
- AES-256-GCMTokens encrypted
- No trainingYour mail never trains any model
Inbox· just arrived
09:42N
Nora Halperin
n.halperin@aurelia-press.com
Re: Q2 invoice & remittance
for February
Afternoon, attaching the February invoice along with the corrected remittance note. Payment due the 28th. Let me know if the new VAT line needs adjusting on your end…
Mailbud reads —
“Vendor invoice. Remittance note attached. File under Invoices.”
Confidence 0.94
→ /Mailbud/Invoices
§ 01 — How it works
From inbox
to elegant order, in three moves.
Each message travels the same short path. Nothing magic, nothing hidden. Read, considered, and either filed with confidence or held back for you. The review queue is the editor's desk.
01 · Arrives
A letter lands
Graph webhook fires within a second. The worker picks it up; the inbox is untouched.
02 · Considered
Read, with intent
The classifier scores each category against your descriptions, guided by past examples.
03 · Filed
Placed on the shelf
Confident? Moved to its folder. Uncertain? Held in the review queue, reasoning attached.
§ 02 — What it does
a quartet
02
Files itself, quietly
Confident reads glide into the right Outlook folder automatically, nested under a prefix you choose. A clean inbox without a single click, and no rules to maintain.
Microsoft Graph · nested folders
03
Asks when uncertain
Anything ambiguous lands in a small review queue with the classifier's reasoning shown. Approve, reassign, or dismiss. Every choice becomes a training example.
pgvector · few-shot retrieval
04
Yours, and only yours
Tokens encrypted at rest. Multi-tenant isolation at the query layer. Your examples stay yours, and your mail never trains anyone's model.
AES-256-GCM · tenant-scoped
§ 03 — The review queue
The review queue,
at rest.
When the classifier is uncertain, mail waits here, with the reasoning shown. Approve, reassign, or dismiss. Every choice teaches the next read.
/review · 3 awaiting
mailbud.app
M
Maren Østgaard11:04 · today
Schedule for the Thursday read-through?
Hi, looping back on the read-through we floated last week. I can do any morning after Tuesday; we'd need about an hour and a half together. Could pair with the costume call…
“Reads like a meeting request, but the sender has never appeared in Meetings before, so Personal is also plausible.”
Suggests Meetings · 0.67
A
Auryn Logistics09:21 · today
Your March statement is available
Your account statement for the period 01 Mar to 31 Mar is now available. Download the PDF from the attached secure link. Questions about a line item? Reply to this note…
“Mentions a statement and a PDF, but no amount or due date. Could be Invoices or Notifications.”
No confident pick
J
Jonas, DNSverig07:10 · today
Quick follow-up on the contract clause
Morning, one more pass on clause 7.2 before we sign. Would be good to resolve the indemnity language today so I can send across for counter-signature by EOD…
“Touches a contract and asks for action. Straddles Contracts and Important, either fits, depending on how you file signed docs.”
Suggests Contracts · 0.72
Editor's desk↵ approve · R reassign · ⌫ dismiss
§ 04 — Examples & logs
Every decision
leaves two traces.
Each item you approve, reassign, or dismiss is kept as a private reference in your account, never used to train an AI model, only consulted by your own classifier on future reads, and appears as a line in a readable ledger you can audit whenever curiosity, or compliance, asks.
✺Your examples
Kept for next time- February invoice, remittance attached→Invoices
- Scheduling the Thursday read-through→Meetings
- Monthly dispatch from The Essayist→Newsletters
- Clause 7.2 follow-up, counter-signature→Contracts
- Lena's birthday, plans for Saturday?→Personal
Top three nearest retrieved on each read · pgvector cosine5 · ∞
✺Classification ledger
/logs · everything, by the minuteTimeSubjectAction
- 11:42Q1 press clips, for reviewImportant·0.89Filed
- 11:04Schedule for the Thursday read-through?Meetings·0.67Queued
- 09:21Your March statement is available—·0.43Queued
- 08:58Contract renewal, Auryn LogisticsContracts·0.88Filed
- 07:10On attention, and the slow erosion of itNewsletters·0.97Filed
Open any row for reasoning, tokens, latency, errors/logs
§ 05 — By the numbers, quietly
< 3s
Webhook to queued
Graph is acknowledged within three seconds; classification happens in the background.
∞
Categories, your words
Define as many as the work needs. Describe them plainly; the classifier reads descriptions.
0
Rules to maintain
No brittle filters or regexes. Describe a category in plain language; the classifier handles the rest.
§ 06 — Pricing
Try free,
then decide.
Start with fourteen days on the house. Set up your categories, watch the queue at work, see whether it fits the way you read mail. No card to begin, no nudges along the way. When the trial ends, a single Pro plan is waiting, or you simply walk.
Free trial
14 days,
free.
No card to start. No reminders to upgrade. Cancel at any point during the trial and nothing is charged.
After the trial, the Pro plan
€14.95/ month
- Trial
- 14 days, no card required
- Payment
- SEPA direct debit via WeFact
- Billing
- Monthly, cancel anytime
- Tax
- VAT added where applicable
Cancel at any time. Access continues until the end of the paid period.
About
Built with care.
Private by default.
Mailbud reads your mail so you can stop sifting through it, but it reads only what it needs, stores only what it must, and shares none of it. Your inbox is a place of trust; we treat it that way.
- Sign-in
- Microsoft, directly
- Your access tokens
- Encrypted at rest (AES-256-GCM)
- Your mail
- Read to classify, never used to train an AI model
- Your examples
- Kept in your account, shape only your own classifier
- The classifier
- A small OpenAI model, called per email, no memory between reads
Finis —
A calmer correspondence,
in minutes.
Sign in with your Microsoft 365 account. Define your first five categories. Let the next unread letter find its place.
Signed