Inbox providers · tied for 14th of 52 · 2026
MailBomb pricing and review
mailbomb.io · Google & Microsoft inbox reseller · Visit site ↗
- Deliverability12/27
- Inbox choice10/16
- Sending8/15
- API & AI0/7
- Buying terms8/10
- Setup cost21/25
Why it ranks here
Sells Google Workspace and Microsoft 365 inboxes. A working setup of 30 inboxes with warm-up and a sequencer costs $157 a month, one of the lowest in the index. Inboxes arrive pre-warmed, so you can start sending sooner. Deliverability: automatic SPF/DKIM/DMARC and replacement of burned inboxes. At $2 per inbox, it is among the cheapest quarter of providers we track (median $3.15).
Key features
- Automatic SPF/DKIM/DMARC
- Replacement of burned inboxes
- Google Workspace inboxes
- Microsoft 365 inboxes
- A unified inbox
Best for
Senders who want Google and Microsoft inboxes from one vendor.
Pricing
- Per inbox
- $2
- At volume
- $1
- Cheapest plan
- $2/mo
Monthly billing. Pricing page ↗ · checked Oct 31, 2026
Scorecard
| DeliverabilityWhat protects sender reputation without extra tools or subscriptions. | 12/27 | ||
|---|---|---|---|
| Inbox choiceWhich types of inboxes and domains you can get in one place. | 10/16 | ||
| Sending and workflowWhether you can run and manage campaigns without another tool. | 8/15 | ||
| API and AI agentsHow easy it is to automate the setup from code or an AI assistant. | 0/7 | ||
| Buying termsHow much you risk before you know it works. | 8/10 | ||
| Cost of a working setupWhat 30 inboxes plus warm-up and a sequencer cost per month — the cheaper, the more points. | 21/25 | ||
| Total | 59/100 | 14 of 20 conditions checked |
The evidence
Every condition, what the vendor's own site says, and where.
| Deliverability | |||
|---|---|---|---|
Ongoing warm-up included in the priceNot offeredPre-Warmed Email Accounts... SPF, DKIM, DMARC, Warm up – already done for you on high-quality U.S. IP | source ↗ | 0/6 | |
Pre-warmed inboxesConfirmedWarm up – already done for you on high-quality U.S. IP | source ↗ | 2/2 | |
Automatic SPF, DKIM and DMARC setupConfirmedAutomated DNS Setup & Sending tool Intrigation (oAuth,MasterInbox,CRM,Slack) | source ↗ | 5/5 | |
| Inbox placement or spam testsNot found on site | 0/5 | ||
Replacement of burned inboxes or domainsConfirmedBackup accounts always ready | source ↗ | 5/5 | |
| Dedicated IP optionNot found on site | 0/4 | ||
| Inbox choice | |||
Google Workspace inboxesConfirmedLand In the Inbox with Google Workspace Accounts | source ↗ | 5/5 | |
Microsoft 365 / Outlook inboxesConfirmedMicrosoft Office 365 Accounts... US IP Microsoft 365 Business Accounts | source ↗ | 5/5 | |
| Private SMTP/IMAP inboxesNot found on site | 0/3 | ||
| Domain purchase inside the productNot found on site | 0/3 | ||
| Sending and workflow | |||
Built-in campaign sequencerNot offeredDo you integrate with any sending tool? Yes, we integrate with any sending tool. | source ↗ | 0/5 | |
Unified inbox for repliesConfirmedAutomated DNS Setup & Sending tool Intrigation (oAuth,MasterInbox,CRM,Slack) | source ↗ | 4/4 | |
Export to other sending toolsConfirmedDo you integrate with any sending tool? Yes, we integrate with any sending tool. | source ↗ | 4/4 | |
| Multi-client workspaces or white-labelNot found on site | 0/2 | ||
| API and AI agents | |||
| Public APINot found on site | 0/4 | ||
| Official MCP serverNot found on site | 0/3 | ||
| Buying terms | |||
Prices published on the siteConfirmedStarter $2 For orders under 50 accounts | source ↗ | 4/4 | |
Free plan, free trial or money-back guaranteeConfirmedGet started for free with 9 GW accounts (45 days free trial) | source ↗ | 4/4 | |
| Monthly billing availableNot found on site | 0/2 | ||
| Cost of a working setup | |||
Cost of a working setup (30 inboxes)Calculated30 inboxes × $2 = $60 + $97 — Instantly Hypergrowth for warm-up and sending (the inbox price includes neither) = $157/month | how ↗ | 21/25 | |
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Where we checked
Only the vendor's own public pages. We do not use third-party reviews or ratings. Something wrong? Send a correction.
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