Inbox providers · 1st of 52 · 2026
MailOptimal pricing and review
mailoptimal.com · Private servers and dedicated IPs · Visit site ↗
- Deliverability14/27
- Inbox choice16/16
- Sending15/15
- API & AI4/7
- Buying terms10/10
- Setup cost24/25
Why it ranks here
Sells Google Workspace, Microsoft 365 and private SMTP inboxes. A working setup of 30 inboxes with warm-up and a sequencer costs $119 a month, one of the lowest in the index. Deliverability: automatic SPF/DKIM/DMARC, inbox placement tests and dedicated IPs. It has a public API for automation. Agencies get client workspaces or a white-label option.
Key features
- Automatic SPF/DKIM/DMARC
- Inbox placement tests
- Google Workspace inboxes
- Microsoft 365 inboxes
- A built-in sequencer
Best for
Agencies that run inboxes for several clients.
Pricing
- Per inbox
- $2
- At volume
- $1
- Minimum order
- 10 inboxes
- Cheapest plan
- $20/mo
- Domain (.com)
- $8/yr
Monthly billing. Pricing page ↗ · checked Oct 31, 2026
Scorecard
| DeliverabilityWhat protects sender reputation without extra tools or subscriptions. | 14/27 | ||
|---|---|---|---|
| Inbox choiceWhich types of inboxes and domains you can get in one place. | 16/16 | ||
| Sending and workflowWhether you can run and manage campaigns without another tool. | 15/15 | ||
| API and AI agentsHow easy it is to automate the setup from code or an AI assistant. | 4/7 | ||
| Buying termsHow much you risk before you know it works. | 10/10 | ||
| Cost of a working setupWhat 30 inboxes plus warm-up and a sequencer cost per month — the cheaper, the more points. | 24/25 | ||
| Total | 83/100 | 18 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 offeredStarter For solo founders starting cold outreach. $79 one-time Regular $29/mo , pay once, keep forever 10K campaign emails / mo 3K warmup emails / mo | source ↗ | 0/6 | |
Pre-warmed inboxesNot offeredEvery mailbox sends from an IP reserved for your workspace, SPF, DKIM and DMARC are written for you, and warmup starts on day one. | source ↗ | 0/2 | |
Automatic SPF, DKIM and DMARC setupConfirmedSPF, DKIM, DMARC, MX, SSL and tracking records are written, verified and re-checked for you. | source ↗ | 5/5 | |
Inbox placement or spam testsConfirmedUnlimited warmup, placement tests and reputation monitoring | source ↗ | 5/5 | |
| Replacement of burned inboxes or domainsNot found on site | 0/5 | ||
Dedicated IP optionConfirmedInfraOptimal sells dedicated IPs only. | source ↗ | 4/4 | |
| Inbox choice | |||
Google Workspace inboxesConfirmed$4/ mailbox / mo (Google Workspace) | source ↗ | 5/5 | |
Microsoft 365 / Outlook inboxesConfirmed$4/ mailbox / mo (Microsoft O365) | source ↗ | 5/5 | |
Private SMTP/IMAP inboxesConfirmedInfraOptimal offers dedicated-IP mailboxes starting at $1.00/month with portable SMTP and IMAP access | source ↗ | 3/3 | |
Domain purchase inside the productConfirmed$8 a year in-app | source ↗ | 3/3 | |
| Sending and workflow | |||
Built-in campaign sequencerConfirmedUnlimited campaigns & leads | source ↗ | 5/5 | |
Unified inbox for repliesConfirmedEvery reply in one shared inbox, with a built-in pipeline | source ↗ | 4/4 | |
Export to other sending toolsConfirmedEach mailbox comes with standard SMTP and IMAP credentials, so it works in Instantly, Smartlead or anything else that takes a mailbox. | source ↗ | 4/4 | |
Multi-client workspaces or white-labelConfirmedManage unlimited clients from one dashboard. White-label everything, with dedicated sending infrastructure per client, no extra fees. | source ↗ | 2/2 | |
| API and AI agents | |||
Public APIConfirmedAPI & Integration | source ↗ | 4/4 | |
| Official MCP serverNot found on site | 0/3 | ||
| Buying terms | |||
Prices published on the siteConfirmedSimple, transparent pricing | source ↗ | 4/4 | |
Free plan, free trial or money-back guaranteeConfirmedEvery plan starts with a 14-day free trial. No credit card required | source ↗ | 4/4 | |
Monthly billing availableConfirmedMonthly Standard Quarterly -6% Annually -28% | source ↗ | 2/2 | |
| Cost of a working setup | |||
Cost of a working setup (30 inboxes)Calculated30 inboxes × $2 = $60 + $59 — MailOptimal Growth plan ($59/mo, 30K campaign emails and 20K warm-up emails a month) = $119/month | how ↗ | 24/25 | |
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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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