Line by line
| Feature | Inboxkit | CheapInboxes |
|---|---|---|
| Mailboxes | Official, paid Google Workspace and Microsoft 365, plus Azure | Google Workspace and Microsoft 365 |
| Claude Code / Codex (MCP) | Remote MCP server, connects to Claude Code and Codex | MCP server, plus 70+ REST endpoints and webhooks |
| Price | $3 a mailbox, or $2.50 annual | $3.50 to $2.80 by volume, billed monthly |
| Azure | $30 a tenant for up to 100 mailboxes | Not listed |
| Setup time | Orders completed in 30 to 120 minutes, automatically | Same day or 10 minutes on its homepage; about 48 hours in its fulfilment policy |
| Domains | Buy domains or connect your own | Sold separately from $2.50 a year; your own are free |
| Billing | Monthly or annual | Monthly, card charged 5 days before renewal |
| Support | 24/7 on Slack, in-app chat and email | 24/7 |
| Warmup | Pre-warmed mailboxes, or 14-day warmup as a $3 add-on | Pre-warmed mailboxes on every plan |
| Monitoring (add-on) | InfraGuard every six hours: blacklists, DNS, bounces, placement, auto-pause | Not listed |
Competitor details from public pages, checked 19 Oct 2026. Sources: CheapInboxes homepage and pricing (cheapinboxes.com); CheapInboxes developers (cheapinboxes.com); CheapInboxes fulfilment policy (cheapinboxes.com); CheapInboxes terms (cheapinboxes.com); Inboxkit pricing.
Competitor offers can change after that date. Trademarks belong to their owners.
Prices at common volumes
| Mailboxes | Inboxkit, monthly | Inboxkit, annual | CheapInboxes |
|---|---|---|---|
| 100mailboxes | Inboxkit, monthly$300 | Inboxkit, annual$250 | CheapInboxes$325 |
| 1,000mailboxesGoogle or Microsoft 365 seats. Our annual rate: $2,500 | Inboxkit, monthly$3,000 | Inboxkit, annual$2,500 | CheapInboxes$2,800 |
| 1,000mailboxesMicrosoft: ten Azure tenants against Microsoft 365 seats | Inboxkit, monthly$300 | Inboxkit, annual$300 | CheapInboxes$2,800 |
At 1,000 Google or Microsoft 365 seats, CheapInboxes is cheaper on monthly billing. Every CheapInboxes plan includes pre-warmed mailboxes. On annual billing, ours is $2.50.
CheapInboxes tiers: $3.50 under 100, $3.25 to 249, $3 to 999, $2.80 at 1,000 or more.
CheapInboxes pricing against Inboxkit
CheapInboxes sets one price per mailbox for the whole order, by volume. It is $3.50 under 100, $3.25 to 249, $3.00 to 999 and $2.80 from 1,000. Google and Microsoft cost the same, billed monthly.
Inboxkit is $3 a mailbox at every volume, or $2.50 on annual billing. Under 250 mailboxes Inboxkit costs less, and from 250 to 999 both charge $3.
At 1,000 mailboxes on monthly billing, CheapInboxes costs $2,800 and Inboxkit $3,000. On annual billing Inboxkit is $2,500 a month, at today’s published rate.
CheapInboxes mailboxes, Microsoft and Azure
CheapInboxes sells Google Workspace Business Starter accounts, one domain to a workspace, and Microsoft 365 mailboxes. Its FAQ states full admin access to each workspace. Its homepage and developers page do not mention Azure or Entra.
Inboxkit sells official, paid Google Workspace and Microsoft 365 mailboxes. For Microsoft volume, one Azure tenant holds up to 100 mailboxes for $30 a month. 1,000 run on ten tenants for $300.
CheapInboxes setup time and domains
CheapInboxes takes orders in its web app, API and MCP server, and sets up inboxes and DNS automatically. Its homepage says same day and 10 minutes. Its fulfilment policy says about 48 hours.
CheapInboxes sells domains from $2.50 a year, and importing your own is free. Inboxkit completes orders in 30 to 120 minutes, automatically. You buy domains or connect your own in one click, with SPF, DKIM and DMARC configured.
CheapInboxes warmup and monitoring
Every CheapInboxes plan includes pre-warmed mailboxes, and the site advertises automatic reconnection of disconnected mailboxes. Its pages state no blacklist, DNS or placement monitoring.
Inboxkit’s pre-warmed mailboxes go live in hours. New mailboxes can take a 14-day warmup on an isolated network, at $3 a mailbox. InfraGuard checks blacklists, DNS, bounces and inbox placement every six hours, with alerts and auto-pause. It is an add-on, and its first month is free.
CheapInboxes API and MCP server
CheapInboxes has a public REST API with 70+ endpoints and webhooks, and it works as an MCP server.
Inboxkit’s full REST API has 119 endpoints and webhooks, on every account. Connect Claude Code or Codex to Inboxkit’s remote MCP server to run your mailbox work from an agent.
CheapInboxes reviews and support
Inboxkit is rated 4.7 out of 5 on G2 from 120 reviews.
Both offer 24/7 support. Inboxkit’s runs on Slack, in-app chat and email, and every account gets unlimited team members and workspaces.
Switch from CheapInboxes in four steps
Create a free account
Pay only for the mailboxes you add. No plan to pick first.
Buy or connect domains
Then add Google Workspace, Microsoft 365 or Azure mailboxes on them.
Export to your sequencer
One click to 24+ sequencers, including Smartlead and Instantly.
Run both side by side
Warm up here while CheapInboxes keeps sending. Move campaigns before your plan renews.
Questions about CheapInboxes
Is CheapInboxes cheaper than Inboxkit?
At 1,000 or more on monthly billing, yes: $2.80 a mailbox against $3. Under 100, CheapInboxes is $3.50. On annual billing Inboxkit is $2.50 at every volume.
How does CheapInboxes pricing work?
One rate applies to the whole order. It is $3.50 under 100, $3.25 to 249, $3.00 to 999 and $2.80 from 1,000. It bills monthly, and domains start at $2.50 a year.
Does CheapInboxes offer Azure?
Its homepage and developers page do not mention Azure or Entra. On Inboxkit, one Azure tenant holds up to 100 Microsoft mailboxes for $30 a month.
Does CheapInboxes have an MCP server?
Yes. It works as an MCP server and has a REST API with 70+ endpoints. Inboxkit has a remote MCP server and 119 REST endpoints on every account.
How long does CheapInboxes setup take?
Its homepage says same day and 10 minutes, and its fulfilment policy says about 48 hours. Inboxkit completes orders in 30 to 120 minutes, automatically.
Is CheapInboxes legit?
CheapInboxes is a working provider with published prices, an API and an MCP server. Inboxkit is rated 4.7 out of 5 on G2 from 120 reviews.
How do I move from CheapInboxes to Inboxkit?
Open a free account, buy or connect domains, and add mailboxes. Export them in one click to your sequencer. Keep CheapInboxes sending until your campaigns have moved.
Open a free account
$3 a mailbox, no minimum. Google Workspace, Microsoft 365 and Azure.
