Mailinator vs Unspam.email
Mailinator
mailinator.com
Unspam.email
unspam.emailSide by side
| Figure | Mailinator | Unspam.email |
|---|---|---|
| Price from | $79/mo | $5/mo |
| Free plan | Yes | Yes |
| Free trial | Yes | — |
| Open source | — | — |
| Web | Yes | Yes |
| Android | Yes | — |
| API | Yes | Yes |
| Plans published | 13 | 7 |
| Spec score · Email Testing Software | 9.0 (#3) | 8.3 (#10) |
| API authentication | API requests authenticate with a team token supplied in an Authorization header or token query parameter. | REST requests use bearer tokens created per integration; tokens can be revoked individually and invalid or unauthorized calls return 401 or 403. |
| Automation | The REST API supports inbox and message retrieval, SMS retrieval, message injection, and integration with CI/CD pipelines. | Scheduled tests can track placement and spam scores and email alerts when results decline. |
| Headquarters | Ann Arbor, Michigan, USA | The company lists 167 Madison Avenue, Suite 205, New York, New York 10016, United States, and a Barcelona office. |
| Integrations | Inbound webhooks can accept HTTP POST messages from sources such as alert systems, Zapier, or Twilio and apply configured rules. | The API is designed to receive real messages from SES, Postmark, SendGrid, Mailgun or a customer’s SMTP system. |
| Praise: usability | G2 reviewers describe Mailinator as easy to use, reliable for temporary addresses and useful for QA workflow testing. | G2 reviewers repeatedly describe testing as quick, straightforward, easy to set up and supported by clear reports. |
| Purpose | Mailinator provides temporary inboxes and email and SMS workflow testing for developers, QA teams, and businesses. | Unspam is an email deliverability platform that checks spam signals, sender authentication, blacklists, previews, heatmaps, and inbox placement. |
| Rating on Capterra | 4.7 out of 5 from 153 reviews | 5.0 out of 5 from 1 review. |
| Rating on G2 | 4.6 out of 5 from 12 reviews | 4.8 out of 5 from 32 reviews. |
| Rating on GetApp | 4.7 out of 5 from 142 reviews | 5.0 out of 5 from 1 review. |
| Security | Mailinator says web traffic is served over HTTPS, private system email bodies are encrypted at rest, and public system email is not encrypted. | The privacy policy says stored data is kept on services and providers certified to ISO/IEC 27001:2013, PCI DSS, SOC 1 Type II, and SOC 2 Type II or higher. |
| Support | Documentation is available 24/7/365; the support page says public issue emails are usually answered within 24–72 hours and subscribers receive priority support. | The company lists support chat and [email protected] for support or product inquiries. |
| What it does | Mailinator provides public and private inboxes for automated email and SMS workflow testing, including sign-ups, 2FA and password resets. | Unspam.email is a deliverability platform combining spam tests, authentication and blacklist checks, previews, heatmaps and inbox-placement testing. |
Plans
Mailinator
- Public - FreeFree
- Public - FreeFree
- Verified ProFree
- Verified ProFree
- Business$79 a month
- Business (annual)$79 a month
- Business$99 a month
- Business Plus$159 a month
- Business Plus (annual)$159 a month
- Business Plus$199 a month
Unspam.email
- FreeFree
- No accountFree
- Custom plan$5 a month
- Basic$9 a month
- Business$19 a month
- Agency$29 a month
- White LabelPriced on request
In their own words
Mailinator
Mailinator provides temporary inboxes and tools for testing email and SMS workflows. Developers, QA teams, and businesses can use it to check delivery for OTP, MFA, onboarding, password recovery, and other email processes at scale. Paid subscriptions include private testing domains, where messages can arrive at any address without creating an inbox first. The REST API retrieves inboxes, messages, and SMS, injects messages, and connects with CI/CD pipelines. Inbound webhooks can accept HTTP POST messages from sources such as alert systems, Zapier, or Twilio, then apply configured rules. SMS can be routed to an inbox or API for automated OTP and 2FA testing. The free public inboxes are readable by anyone, and messages typically auto-delete after several hours. Mailinator is receive-only: it cannot send email or fill out forms. The Public - Free plan is free to use without sign-up. Business costs $79 a month billed yearly; a two-week Business trial is listed. Other plans include Verified Pro at free, Business Plus at $159 a month billed yearly, and Enterprise at a price agreed with the maker with custom pricing.
Unspam.email
Unspam.email is an email deliverability platform for examining spam signals, sender authentication, blacklists, previews, and inbox placement. Spam tests assess authentication, sender reputation, blacklists, and message content, then show which checks affected the score. Inbox placement tests send a campaign to seed mailboxes at Gmail, Outlook, Yahoo, and other providers and report where it 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 send alerts by email when results decline. Its API has 39 endpoints across seven areas and can test mail 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, unlimited sender accounts, and 14-day data retention, but excludes DMARC monitoring and full API access. Custom costs $5 a month, with a $5 monthly minimum and pay-per-test rates.