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Unspam.email
What Unspam.email is
Unspam.email is an email deliverability service for checking spam signals, authentication, blacklist status, previews and inbox placement. Spam tests assess authentication, sender reputation, blacklists and message content, and show which checks affected the score. Inbox placement tests send campaigns to seed mailboxes at Gmail, Outlook, Yahoo and other providers, then report where they landed. Email previews cover rendering across more than 50 real clients and devices in light and dark modes. Scheduled tests can track placement and spam scores and email alerts if results decline. Its API has 39 endpoints across seven areas and can test messages sent through SES, Postmark, SendGrid, Mailgun or a sender’s own SMTP setup; an MCP server lets compatible AI clients run tests and retrieve results. The Free plan includes 21 tests per month and 14-day data retention, but excludes DMARC monitoring and full API access. Custom costs $5.00 per month at a $5 monthly minimum, with pay-per-test rates that decrease as volume grows. Submitted test emails, including headers and content, are collected and stored to provide the service.
Who it suits
It may suit marketers, founders, agencies and product teams that need to assess email placement, spam signals or rendering. Teams using AI-generated reports should consider that submitted test content and results are sent to OpenAI for processing.
What it does well
- Tests inbox placement across major providers.
- Previews cover more than 50 clients and devices.
- Scheduled tests can trigger decline alerts.
- API supports multiple sending services and SMTP.
- Free plan includes 21 tests per month.
What to know first
- Free plan excludes DMARC monitoring and full API access.
- Free plan data retention is 14 days.
- Submitted test email content and headers are stored.
- AI reports send submitted content and results to OpenAI.
Limits
The No account option includes 3 spam tests per month, 2 inbox placements per month, 1 device preview per month, and 24-hour data retention. The Free plan includes 21 tests per month and 14-day data retention, and excludes DMARC monitoring and full API access.
Plans
| Plan | Billed and limits | Price |
|---|---|---|
| Free | monthly · 21 tests/month · 5 spam tests · 3 inbox placements · 3 device previews · 5 screenshots · 5 heatmaps · 14-day retention · unlimited sender accounts · AI assistant | Free |
| No account | no signup; limits reset monthly · 3 spam tests · 2 inbox placements · 1 device preview · 3 screenshots · 1 heatmap · 24-hour data retention | Free |
| Business | flat rate per month · 200 spam tests/month · 200 previews/month · 50 heatmaps/month · 50 inbox tests/month · historical results · AI assistant | $19 a month |
| Agency | flat rate per month · 500 spam tests/month · 500 previews/month · 250 heatmaps/month · 250 inbox tests/month · historical results · AI assistant | $29 a month |
| Custom plan | monthly minimum; pay per test; annual billing saves 15% · spam tests · inbox placements · device previews · screenshots · heatmaps · DMARC monitoring · 3-year retention · unlimited sender accounts · AI assistant · full API · MCP · volume discounts | $5 a month |
| Basic | flat rate per month · 50 spam tests/month · 50 previews/month · 10 heatmaps/month · 10 inbox tests/month · historical results · AI assistant | $9 a month |
| White Label | contact vendor · unlimited spam tests · unlimited previews · unlimited heatmaps · unlimited inbox tests · historical results · AI assistant | On request |
As unspam.email lists them, read 15 Oct 2026. The maker's own page has the final word.
Getting started
- Open https://unspam.email/ on the web or use the API.
- Choose the No account option for free, or use the Free plan.
- Use the Custom plan at $5 a month, billed at a $5 monthly minimum, for pay-per-test access.
- Connect tests through SES, Postmark, SendGrid, Mailgun, or your own SMTP setup.
- Use the MCP server with a compatible AI client to run tests and retrieve results.
Verdict
Unspam.email combines deliverability checks, previews, monitoring and API access. Review the Free plan limits and data handling details if test emails contain sensitive material.
Questions
Is there a free plan?
Yes. The Free plan includes 21 tests per month, unlimited sender accounts, an AI assistant, and 14-day data retention. The No account option costs nothing and has lower monthly test and preview allowances.
How much does the Custom plan cost?
It costs $5 a month, billed at a $5 monthly minimum. It uses pay-per-test rates that decrease as volume grows.
Which platforms does Unspam.email support?
It is available on the web and through an API.
Can it test email sent through my provider?
The API can test messages sent through SES, Postmark, SendGrid, Mailgun, or a sender’s own SMTP setup.
What does the Free plan leave out?
DMARC monitoring and full API access are excluded.
What happens to submitted email content?
Submitted test emails, including headers and message content, are collected and stored to provide the service. For AI-generated reports, Unspam says submitted content and results are sent to OpenAI, where content may be retained for up to 30 days and is not used to train or improve models.
Facts from Unspam.email's own pages
- AI data processing
- AI reports send submitted email content and test results to OpenAI; Unspam says the content is not used for model training and may be retained up to 30 days. · unspam.email, 15 Oct 2026
- AI processing
- For AI-generated reports, Unspam says it sends the submitted test content and test results to OpenAI, where the content may be retained for up to 30 days and is not used to train or improve models. · unspam.email, 4 Oct 2026
- API and MCP
- The API provides 39 endpoints across seven areas, while the MCP server lets compatible AI clients run tests and retrieve results. · unspam.email, 4 Oct 2026
- API authentication
- REST requests use bearer tokens created per integration; tokens can be revoked individually and invalid or unauthorized calls return 401 or 403. · unspam.email, 15 Oct 2026
- API documentation
- The official API page identifies an OpenAPI document as the complete parameter and response reference. · unspam.email, 15 Oct 2026
- API limits
- API and MCP requests are limited to 100 requests per minute per authenticated account, with 429 responses after the limit. · unspam.email, 15 Oct 2026
- API scope
- The REST API exposes 39 endpoints across seven groups, including spam checks, client previews, DMARC reports, inbox placement, scheduled tests and account status. · unspam.email, 15 Oct 2026
- Authentication checks
- The product checks SPF, DKIM, DMARC, BIMI, reverse DNS, list-unsubscribe headers, broken links, short URLs and domain age or suffix. · unspam.email, 15 Oct 2026
- Automated tests
- Users can schedule recurring spam and placement tests, with stored runs, graphs and email alerts when scores or placement decline. · unspam.email, 15 Oct 2026
- Automation
- Scheduled tests can track placement and spam scores and email alerts when results decline. · unspam.email, 4 Oct 2026
- Client previews
- Client Previews renders messages across more than 50 real mailboxes, mobile devices and desktop clients in light and dark modes. · help.unspam.email, 15 Oct 2026
- Company founding year
- G2’s company profile lists 2020 as the year founded and New York, United States as headquarters. · g2.com, 15 Oct 2026
- Company location
- Unspam lists its registered office at 167 Madison Avenue, Suite 205, New York, NY 10016, United States. · unspam.email, 4 Oct 2026
- Developer workflow
- Long-running API jobs return an identifier that clients poll; the service does not require customers to host public webhooks. · unspam.email, 15 Oct 2026
- Email previews
- The service previews email rendering across more than 50 real clients and devices in light and dark modes. · unspam.email, 4 Oct 2026
- Founder
- Unspam says it was founded by Andrian Valeanu, who also founded Designmodo, Pulsetic, Static.app and Siter.io. · unspam.email, 15 Oct 2026
- Free plan limits
- The Free plan includes 21 tests per month, unlimited sender accounts, and 14-day data retention; DMARC monitoring and full API access are excluded. · unspam.email, 4 Oct 2026
- Headquarters
- The company lists 167 Madison Avenue, Suite 205, New York, New York 10016, United States, and a Barcelona office. · unspam.email, 15 Oct 2026
- Heatmaps
- AI heatmaps predict where readers look first on desktop, tablet and mobile. · unspam.email, 15 Oct 2026
- Hosting providers
- The privacy policy names OVHcloud for hosting and database infrastructure, Stripe for payments and ETH-Services for email hosting. · unspam.email, 15 Oct 2026
- Inbox placement
- Inbox-placement tests send campaigns to seed mailboxes at Gmail, Outlook, Yahoo and other providers and report the folder reached. · unspam.email, 15 Oct 2026
- Integrations
- The API is designed to receive real messages from SES, Postmark, SendGrid, Mailgun or a customer’s SMTP system. · unspam.email, 15 Oct 2026
- Intended users
- The company describes the platform as serving marketers, founders, agencies, and product teams. · unspam.email, 4 Oct 2026
- Limit: complexity
- G2 reviewers say detailed or advanced findings can initially overwhelm new users and sometimes need clearer explanations. · g2.com, 15 Oct 2026
Where Unspam.email stands on Freedom251
- Email Deliverability Software#15 of 31
- Email Testing Software#20 of 28