DuoboxYour company's email without an annual contract
This page is for anyone who opened Microsoft 365's page looking for email with their company's name and came out with an annual subscription to Teams, OneDrive and Office. We read the prices on Microsoft's official website on 26 October 2026.
If what you were after was name@yourcompany.com, there's a way to have it today without signing up for a year and without paying for the first person.
Your first inbox is free
With Duobox you start without paying: 1 person, 1 inbox, 1 domain and 10 GB, no card and no time limit. It's not a one-month trial: it's the plan, and it stays that way as long as you're one person.
A company starts with what a company is: someone, a name and an address. When you add a second person, each one is $2 a month, paid month to month. With Microsoft 365, the first person is already $7 a month committed for a year, or $8.40 month to month.
1 person
DuoboxDuobox$0Prices checked on 26 October 2026.
In one line
DuoboxDuobox is your company's email: personal and shared inboxes on your domain, and an agent that can work them with the permissions you choose.
Microsoft 365 is Microsoft's office suite: Outlook and Exchange, Teams, Word, Excel and PowerPoint, OneDrive and Copilot, in a single package.
Side by side
| DuoboxDuobox | Microsoft 365 Business Basic | |
|---|---|---|
| To get started | The first inbox is free: 1 person, 1 domain, 10 GB, no card | Free trial; then you pay |
| Price per person | $2 a month | $7 a month, paying for the year |
| Commitment | Monthly, no contract | Yearly, renewing itself, or $8.40 month to month |
| Shared sales@ | Shared inbox with its own history | Exchange shared mailboxes |
| Inboxes per person | Up to 10, 50 GB each | One mailbox per license, plus the shared ones |
| Agent | Your agent (Claude, ChatGPT, Cursor or any other MCP client), with permissions one by one | Copilot Chat; full Copilot on the higher plans |
| To set it up | One screen: domain, inboxes, people | Microsoft admin center |
| Live alongside, no move | Your domain stays where it is; the new inbox goes on a subdomain | — |
What you pay
| DuoboxDuobox | Microsoft 365 Business Basic | |
|---|---|---|
| 1 person | $0 | $7 a month, for a year |
| 5 people | $8 a month, month to month | $35 a month, for a year |
| Someone joining for three months | $6 in total | $25.20 paying month to month, or that license's whole year |
If your team isn't going to open Teams or Word, why pay for them for a whole year?
Why Duobox
You start free
No card and no contract. Create the account, connect your domain and send the first email from your address.
Month to month, for real
Hire someone for three months, pay for three months. Wrap up a project, remove the person, done.
Your agent, not the one that comes in the box
Copilot is Microsoft's agent. In Duobox you plug in the one you already use —Claude, ChatGPT, Cursor— by pasting
https://mcp.duobox.io/v1/mcpand signing in with your account. Before you connect it, you see every permission: read, leave drafts, send, manage. Remove the ones you don't want.No IT person needed to set it up
Connect the domain, create sales@, invite your team. No licenses to assign and no admin roles to learn.
One person, up to 10 inboxes
sales@, billing@ and your own, with no extra licenses.
It lives alongside what you have
If you already have Outlook on your domain, you don't touch it: the new inbox lives next door, on a subdomain. And if you want to move, your old email imports from Outlook.
In English, Spanish and Portuguese
Written by people, not translated by a machine.
When to choose each one
DuoboxChoose Duobox if you need your company's email on your domain, you want to start without paying and without signing up for a year, you have shared inboxes, and you want the agent you already use to be able to work in that email with permissions you can see.
Choose Microsoft 365 if your team already works in Office and Teams all day, or you have someone who manages IT.
Or both: Outlook for what you already have, and Duobox for the shared inboxes or your agent's inbox, on a subdomain. No migration.
Questions we get
- Is the first inbox free forever?
- Yes, as long as you're one person with one inbox and 10 GB. You only pay once you add someone, a second inbox or more storage.
- Can I use Outlook to open Duobox?
- Yes, like any IMAP account, with your address and your password.
- Can I bring my old email over from Outlook?
- Yes, it imports in one pass.
- Is it secure?
- Sign-in has two-step verification with an authenticator app, and the agent gets in through OAuth: you never give it your password.
DuoboxYour first inbox is free.
1 person, 1 inbox, 1 domain and 10 GB. No card and no time limit. When you add someone, $2 per person a month.
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