Low price. Setup left to you.
You get bare mailboxes and a to-do list. The DNS records and the setup are all on you before you can send a single email.
- DNS left for you to figure out
- Slow manual setup
- Hours of work before you can send
Cold email mailboxes, done for you
Ready-to-send mailboxes, for $1 each.
Ready-to-send mailboxes on US IPs, set up for you with DNS done automatically, for a fraction of the $4 to $8.40 a user a month that Google Workspace and Microsoft charge. Plug them into Mailboxer or your own sending tool. Start at $2 a mailbox, down to $1.
Starts at 15 mailboxes. Cancel any time.
Your mailboxesIllustrative example
- Aalex@yourdomain.comUS IP · DNS set upReady
- Jjamie@yourdomain.comUS IP · DNS set upReady
- Ssam@yourdomain.comExported to MailboxerConnected
- Rriley@yourdomain.comExported to MailboxerConnected
SPF · DKIM · DMARC · MXSet automatically
The problem
Cheap mailboxes leave the setup to you.
Cheap mailboxes leave the setup to you.
Good ones cost a fortune.
Until now.
Cold email has always made you pick one.
or
Clean setup. Priced per seat.
Premium infrastructure works, but the bill climbs fast once you need hundreds of mailboxes.
- High cost per mailbox
- Price doesn't drop as you grow
- Hard to scale up
We do both
Ready-to-send mailboxes, set up for you, at a price that keeps dropping as you grow. As low as $1 each.
See how the price slides →
Spinbox vs Google and Microsoft
Stop paying office-suite prices
Stop paying office-suite prices
for sending mailboxes.
Google Workspace and Microsoft charge the same price for every user, whether you buy 10 or 300. Spinbox starts at $2 a mailbox and slides down to $1 as you grow. Here's what that means for your monthly bill.
$2down to$1
a mailbox a month
- Pay monthly, or yearly for 2 months free
- The price drops as your order grows
- DNS set up for you automatically
- Mailboxes on US IPs
$7
a user a month, Business Starter
- With a 1-year commitment
- $8.40 a user a month without one
- Same price for every user you add
$4
a user a month, Exchange Online (Plan 1)
- Paid yearly
- Microsoft 365 Business Basic is $7, or $8.40 month to month
- Same price for every user you add
| Mailboxes | Spinbox | Google Workspace | Microsoft Exchange Online | You save vs Google | You save vs Microsoft |
|---|
Try your number
How much would you save?
mailboxes
155,000
You keep each year vs Google$0
You keep each year vs Microsoft$0
Google and Microsoft prices are the published US list prices per user per month from their own pricing pages (Google Workspace, Microsoft Exchange Online, Microsoft 365 Business Basic), checked October 25, 2026. They leave out limited-time promotions and can change at any time. The table uses Google's 1-year commitment price and Microsoft's paid-yearly price, their lowest list prices. Google sells Business Starter for up to 300 users per account, and Microsoft sells its Microsoft 365 business plans for up to 300 users. Spinbox prices are the monthly prices from the same price list as our checkout; paying yearly costs the same as 10 months. Domains are extra with all three; Spinbox domains start at $15 a year. Google Workspace and Microsoft 365 include other apps, such as file storage and video calls, that Spinbox doesn't.
The sliding scale
One price.
One price.
It just keeps sliding.
No plans or packages to choose from. Every mailbox in your order gets the same rate, and that rate drops at each step as your order grows. A bigger order never costs less than a smaller one.
$2.00 at 15 mailboxes→$1.00 at 900+
Build your order
How many mailboxes?
Slide or type a number. Your price per mailbox and monthly total update as you go.
- 15 to 5,000 mailboxes
- DNS set up for you automatically
Your orderspinbox.io
mailboxes
155,000
Price per mailbox$1.80
Total per month$180
Create your account and pay by card on the next step. Plans renew automatically until you cancel, and you can cancel any time. By continuing you agree to our Terms.
How it works
From a number to sending.
You pick how many mailboxes you need. We handle the setup, DNS included, so they arrive ready to send.
Pick your mailboxes →- 01
Pick a number
Slide to the number of mailboxes you need and see your price right away.
- 02
We set it up
We build your mailboxes on US IPs and set up the DNS records on your domains automatically.
- 03
Start sending
Connect them to your sending tool and go. Warm up and send with Mailboxer →
What's included
Everything a mailbox needs
🇺🇸
⚙️
🔗
⚡
Everything a mailbox needs
to start sending.
US IPs
Your mailboxes are set up and ready to send on US IPs.
DNS done for you
We set your SPF, DKIM, DMARC and MX records automatically, so there's nothing technical for you to configure.
Works with Mailboxer
Export your mailboxes to Mailboxer to warm up and send, or connect them to your own sending tool.
Fast setup, low price
Pick a number and we build everything for you, from $2 a mailbox down to $1 as your order grows.
Built for
What's the smallest order?
15 mailboxes, at $2.00 each, which is $30 a month.
How does the price slide?
It drops at each step: $2.00 for 15–99 mailboxes, $1.80 from 100, $1.60 from 300, $1.40 from 500, $1.25 from 600, $1.13 from 700, $1.06 from 800, $1.02 from 860, and $1.00 from 900 up. Every mailbox in your order gets the same rate, and a bigger order never costs less than a smaller one, so right after a price drop a few extra mailboxes cost the same total.
Which sending tools work with Spinbox?
Mailboxer, our partner tool, where you can warm up and send. You can also connect your mailboxes to other sending tools. Warm up and send with Mailboxer.
Do I pay today?
Yes. You pay when you order, by credit or debit card (Apple Pay and Google Pay work too). Your card is charged for the plan you picked, monthly or yearly, and it renews automatically until you cancel. You can cancel any time from Plan & billing in your account. New domains you buy with your order are paid at checkout.
Can I change my plan later?
Yes, from Plan & billing in your account. Adding mailboxes, or switching from monthly to yearly, starts right away, and you pay a prorated amount for the time left in your current term. Removing mailboxes, or switching from yearly to monthly, takes effect at the end of the term you've already paid for. We never add charges without asking you first, and going over your plan never triggers an automatic extra charge.
How much are domains?
New domains you buy from us are $15 a year, or the registrar's price plus $7 for domains that cost more, paid when you order them. Domains you already own and connect to Spinbox are free.
Need more than 5,000 mailboxes?
Email us at hello@spinbox.io and we'll set up a bigger order.
From $1 a mailbox
Your next campaign needs a ready place to send from.
Pick your number, get started, and we'll get your mailboxes set up and ready to send.
Pick your mailboxes →