Cheap Inboxes Alternative & Review
Cheap Inboxes review with pricing, ratings, pros, cons, features, key drawbacks, and a clear verdict for cold email infrastructure buyers in 2026.
Key Takeaways
- Cheap Inboxes offers Google Workspace accounts with a Business Starter license, as well as Outlook, starting at just $2.80 per unit. The product includes a developer-first API and Isolated Workspaces
- Maildoso provides SMTP mailboxes for $0.49 per mailbox (plus domains for free). It includes self-healing mailboxes and IP rotation, which is better than dedicated IPs.
Cheap Inboxes Review
Cheap Inboxes review with pricing, ratings, pros, cons, features, key drawbacks, and a clear verdict for cold email infrastructure buyers in 2026.
Rating & Reviews
I bought from cheapinboxes.com and it was a good experience, and the deliverability is great. Full disclosure, it’s a buddy of mine’s
— user review
pretty darn good. been using Cheapinboxes.com for a while now… no issues so far.
— user review
Pros
- 🟢 Pre-warmed mailboxes: Offers pre-warmed Google & Microsoft mailboxes, which can significantly aid deliverability from the start.
- 🟢 Isolated Workspaces: Provides one domain per workspace, ensuring isolation and potentially better sender reputation management.
- 🟢 Developer-First API: Features a comprehensive API for advanced management and integration with existing workflows.
- 🟢 Excellent Support: Advertises 24/7 support with real humans and an average response time of less than 5 minutes.
Cons
- 🔴 Refund Policy Unclear:The ToS doesn’t explain the refund policy clearly.
- 🔴 No Explicit Free Trial: A free trial is not explicitly mentioned on their website.
Maildoso Review
Maildoso is an outbound infrastructure provider built around dedicated IPs, white-glove deliverability onboarding, and a flat per-mailbox model with no per-account cap. It is designed for sales and demand-gen teams that need predictable inbox placement at scale without operating their own mail servers.
Maildoso Pros
- Dedicated IPs from day one — no shared-pool contamination from neighbouring senders.
- White-glove onboarding with deliverability engineers; SPF, DKIM, and DMARC configured for you.
- Flat per-mailbox pricing with no monthly send cap and no per-account markup.
- Direct support from a team that operates mail infrastructure, not generic ticket triage.
Maildoso Cons
- Higher entry price than shared-IP services aimed at single-mailbox use.
- Designed for teams sending at scale; overkill for one or two mailboxes.
Detailed Pricing Comparison
| Mailbox type | Price per mailbox | Minimum package |
|---|---|---|
| Maildoso SMTP | $0.49-2.5 | $25 |
| Maildoso GW | $2.7-4 | $40 |
| Cheap Inboxes | $2.8-3.5 | $3.5 |
Feature Comparison Table
| Feature | Maildoso | Cheap Inboxes |
|---|---|---|
| Mailbox types | SMTP, GW | GW, MS 365 |
| API Availability | Full access (on all plans) | Full access |
| IP type | IP rotation (best for deliverability) | GW/MS IPs |
| Self-healing mailboxes | Support | Email, Chat, Slack, Tech Audits |
| WhatsApp (24/7) | Refund policy | 30-day guarantee |
| No refunds | Trials | 300 mailboxes for 30 days |
| Final rating | ⭐⭐⭐⭐⭐ | ⭐⭐⭐⭐⭐ |
Cold outreach breaks when infrastructure breaks. A campaign can have strong targeting, clean copy, and good sequencing, but if the mailboxes are weak, the result is still spam placement, account churn, and stalled pipeline. The problem becomes more expensive at scale because every burned mailbox can mean lost warmup time, new DNS work, reconnecting sequencers, and replacing domains.
This comparison looks at Cheap Inboxes and Maildoso as infrastructure providers for teams that need outbound-ready mailboxes. The focus is practical: pricing, mailbox types, IP approach, recovery options, support, refund visibility, public reviews, and what each provider is best suited for.
Key Takeaways
Cheap Inboxes Review
The company was founded in August 2024 by Ben Rasmussen.
Cheap Inboxes positions itself as a provider of pre-warmed Google & Microsoft mailboxes specifically tailored for cold email campaigns, particularly for AI-native agencies. The service highlights its ability to ensure high deliverability through automated inbox creation, DNS setup, and integration with various platforms (Instantly, Smartlead, Reachinbox, Reply, Lemlist).
The platform emphasizes isolated workspaces, with a dedicated domain per workspace, and offers a developer-first API for extensive management capabilities.
The True Cost of Bad Deliverability
Do not choose a provider just because they offer the cheapest inboxes. Cheap infrastructure always costs more in the long run. When your deliverability drops, you pay for it in three ways:
- You burn expensive leads. Good B2B data costs money. If your emails land in the spam folder, you waste those leads. You pay for contacts who never even see your pitch.
- You destroy your domains. Once spam filters flag a domain, it is incredibly hard to fix. You usually have to throw the domain away, buy a new one, and start the warm-up process all over again.
- You lose revenue. Every email that goes to spam is a missed meeting. In B2B sales, missing one connection can cost you thousands of dollars in closed revenue.
You have to treat cold email infrastructure as an investment. Maildoso.ai gives you the technical tools to protect your domains and keep your emails in the primary inbox. It is the only way to scale outbound sales profitably.
Final Thoughts
We officially recommend Cheap Inboxes.
Despite the name, which might suggest they sell cheap EDU accounts, their website indicates otherwise. For $3.50, you get official accounts (though it isn’t specified what kind of IPs they use).
We also want to highlight that they offer API access, OAuth, and 24/7 support. In fact, when I reached out to them, I received a response within just 1–2 minutes.
Overall, we recognize Cheap Inboxes as a reputable provider. However, if you are looking to try SMTP mailboxes – which are 50% cheaper – then Maildoso is the place to be.
FAQ
What types of mailboxes do Cheap Inboxes and Maildoso.ai offer?
Cheap Inboxes provides pre-warmed Google & Microsoft mailboxes. Maildoso.ai offers SMTP and Google Workspace mailboxes.
Do both providers offer API access?
Yes, both providers offer API access. Cheap Inboxes features a Developer-First API , and Maildoso.ai provides full API and MCP access with public documentation.
Which is better for scalable outbound infrastructure?
While Cheap Inboxes offers isolated workspaces and pre-warmed mailboxes for deliverability, Maildoso.ai is generally better suited for scalable outbound infrastructure due to its IP rotation and self-healing mailboxes – but the best approach is to test both.
