Cheap Inboxes review: Google and Microsoft inboxes with volume tiers and a developer-first API

Cheap Inboxes sells Google Workspace and Microsoft 365 inboxes at $3.50, down to $2.80 at 1,000+, with one domain per isolated workspace and admin access. Its API and MCP server are among the most complete we read. Its own pages disagree on setup time and say little about warm-up.

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  • Warm-up and sending included
  • $2.50 a mailbox, 12 minimum
  • Month-to-month billing

Cheap Inboxes at a glance

Price per mailbox
from $2.80 (1,000+ mailboxes); $3.50 under 100
Smallest order
None stated; from 1 mailbox
Mailbox types
Google, Microsoft
Warm-up
The FAQ mentions pre-warmed mailboxes without a schedule; Cheap Sequencer ($9.99) has unlimited warm-up
MCP server
Hosted MCP server with an API key; configs for Claude, Cursor and Codex
Trustpilot
4.5 / 5 from 30 reviews

Who Cheap Inboxes fits

Pick Cheap Inboxes if

  • You want Google or Microsoft inboxes with tenant admin access
  • You provision through an API or an AI assistant
  • You buy 250+ inboxes and want volume pricing on monthly billing
  • You want cheap domains bundled

Look elsewhere if

  • You need inboxes within the hour
  • You want warm-up spelled out by the vendor
  • You want a written refund policy
  • You want annual billing discounts

What Cheap Inboxes is

Each domain gets its own Google workspace with admin access, so you control the tenant. Inboxes connect to your sending tool by OAuth and reconnect automatically when a token drops. Exports cover Instantly, Smartlead, ReachInbox, Reply and Lemlist, with EmailBison and PlusVibe in the API.

Domains can be bought in the platform from $2.50 a year with WHOIS privacy, or connected for free, and transferred away for free.

The same team sells Cheap Sequencer, 10,000 sends a month for $9.99 with unlimited inboxes and warm-up. Cheap Inboxes itself has no sending engine.

Google Workspace and Microsoft 365 inboxes, one domain per isolated workspace with admin access, with domains, automatic DNS and export to sequencers source (opens the vendor's page in a new tab) Terms under Wisconsin law; the legal entity is not named. Sister product: Cheap Sequencer source (opens the vendor's page in a new tab)

Cheap Inboxes pricing

Cheap Inboxes plans and prices
PlanPriceMailboxesPer mailboxBillingIncludes
1–99 mailboxes$3.50 a mailbox1–99$3.50monthlyGoogle or Microsoft, admin access, OAuth, DNS, export, 24/7 support source (opens the vendor's page in a new tab)
100–249 mailboxes$3.25 a mailbox100–249$3.25monthlySame source (opens the vendor's page in a new tab)
250–999 mailboxes$3.00 a mailbox250–999$3.00monthlySame source (opens the vendor's page in a new tab)
1,000+ mailboxes$2.80 a mailbox1,000+$2.80monthlySame source (opens the vendor's page in a new tab)

List prices from Cheap Inboxes's pricing page, checked . Taxes and card fees excluded.

Tiers by count, same price for Google and Microsoft: $3.50 for 1–99, $3.25 for 100–249, $3.00 for 250–999, $2.80 above 1,000. Their estimator puts 25 inboxes at $87.50 a month.

Billing is monthly only, and the card is charged five days before renewal. The terms reserve the right to reprice inboxes kept longer than a year.

Cheap Inboxes limits, setup and terms

Each line links to the vendor's page it comes from.

Other Cheap Inboxes features

Isolation
One domain per Google workspace, with admin access to each source (opens the vendor's page in a new tab)
Auto-reconnect
OAuth connections reconnect automatically within minutes source (opens the vendor's page in a new tab)
Cheap Sequencer
10,000 sends a month for $9.99 with unlimited inboxes and warm-up source (opens the vendor's page in a new tab)
Termination
An account can be closed without refund for abusive conduct toward staff source (opens the vendor's page in a new tab)

In detail

Built for developers and AI agents

The public REST API has 70+ endpoints, from domain registration and DNS to mailbox provisioning, sequencer connection and billing, with signed webhooks for events like a mailbox becoming active.

There is also a hosted MCP server with an API key, with ready configs for Claude, Cursor and Codex and a downloadable agent skill. If you want an assistant to order inboxes, Cheap Inboxes is one of the few Google and Microsoft resellers that supports it today.

Where the pages disagree

Setup time reads 10 minutes in the FAQ, same day in the comparison table and about 48 hours in the fulfillment policy. Plan on the policy.

The FAQ says plans include pre-warmed mailboxes but describes no warm-up tool or schedule. Refunds are considered case by case; none are given for Google suspensions or blacklisting, and cancelling needs seven days' notice.

Cheap Inboxes ratings

G2 did not load for us, so we show no G2 score.

Cheap Inboxes or Outreach2day

We sell cold email mailboxes too. Where our product fits this buyer and where it does not.

Outreach2day fits if

  • You run 1,000+ mailboxes: we quote a volume price below every vendor list price in our comparisons, warm-up and sending included
  • SMTP mailboxes are enough and you want warm-up and sending included
  • You want 25 cold emails per mailbox a day at $2.50 from 12 mailboxes
  • You want campaigns and replies in the same tool as the mailboxes

Stay with Cheap Inboxes if

  • You need Google Workspace or Microsoft 365 accounts with admin access
  • You want domains from $2.50 a year
  • You need 1 to 11 inboxes

Cheap Inboxes review: questions

How much does Cheap Inboxes cost?

$3.50 an inbox a month for 1–99, $3.25 for 100–249, $3.00 for 250–999 and $2.80 for 1,000+, the same for Google and Microsoft. Domains start at $2.50 a year.

Does Cheap Inboxes have an MCP server?

Yes. A hosted MCP server with an API key, with configs for Claude, Cursor and Codex.

How long does Cheap Inboxes setup take?

The fulfillment policy says about 48 hours, longer for large orders. The FAQ says 10 minutes and the comparison table same day.

Does Cheap Inboxes include warm-up?

The FAQ mentions pre-warmed mailboxes without details. Its sister product Cheap Sequencer ($9.99 a month) includes unlimited warm-up.

Does Cheap Inboxes give refunds?

Refunds are considered case by case. None are given for Google suspensions or third-party blacklisting.

What is Cheap Inboxes' Trustpilot rating?

4.5 out of 5 from 30 reviews when we checked.

Deliverability call

Talk to our deliverability team

Book a call with the people who run our mailbox infrastructure. We look at your current setup and tell you what to change. Running 1,000+ mailboxes? We also quote a volume price below every vendor list price in our comparisons, warm-up and sending included.

  • Review your domains, DNS records and current inbox placement
  • Size the setup: domains, mailboxes per domain and daily volume per mailbox
  • Plan warm-up and the move from your current provider or sequencer
  • 1,000+ mailboxes: a volume price per mailbox for your setup

Free call

See open times in your time zone and book on this page.

Or open the booking page

More on Cheap Inboxes

Sources

Each vendor's own pages. Vendors change prices and plans; if something here is out of date, write to support@outreach2day.com and we will fix it.

First cold emails on day 14, full volume on day 21

Add domains, create mailboxes and turn on warm-up. You see every mailbox's warm-up numbers from day one.

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