A Mailinator Alternative Built for Automated Testing
Mailinator pioneered the public throwaway inbox, and it’s still handy for a quick manual check. But if you’re automating tests — reading codes in CI, running flows in parallel, keeping inboxes private — you may be reaching for features behind its paid plans. Here’s an honest look at Devmailr as a Mailinator alternative for automated testing.
Disclaimer: We make Devmailr, so weigh this accordingly — we’ve tried to be fair, and Mailinator is a solid tool for what it’s built for. Features and pricing change; check both sites before deciding.
What Mailinator is great at
Credit where due: email anything@mailinator.comand it exists instantly, no signup — perfect for a quick “did the email send?” check by hand. Its private domains add team inboxes, an API, routing rules, and real SMS numbers for teams that need them.
Where it gets awkward for automation
- Public inboxes are world-readable. Anyone can read mail sent to a public Mailinator address — unsuitable for real data or parallel test isolation.
- The API needs a private (paid) domain. To read mail programmatically and privately, you’re on a paid plan.
- Short public retention. Public mail is purged quickly, which can race your tests.
How Devmailr compares
Devmailr is built specifically for automated testing, so the essentials are first-class and cheap:
- Private by default — every inbox belongs to your account; nothing is world-readable.
- Real REST API from €5/mo — create, read, and delete inboxes programmatically.
- Wait-for-email long-poll — block until the matching message arrives instead of polling.
- Code & link extraction —
extractedCodesandprimaryLink, parsed at receive time. - Authentication verdicts — SPF/DKIM/DMARC/spam results on every message.
- SSE stream — receive mail in real time without hosting a webhook.
A quick side-by-side
| Feature | Mailinator | Devmailr |
|---|---|---|
| Public throwaway inboxes | Yes (free) | — (private only) |
| Private inboxes | Paid domain | Yes, all plans |
| REST API | Private domain (paid) | Yes (from €5/mo) |
| Wait-for-email | Yes | Yes |
| Code / link extraction | — | Yes |
| SPF/DKIM/DMARC verdicts | — | Yes |
| SMS / phone numbers | Yes (paid) | — |
| Real-time without a webhook (SSE) | — | Yes |
Approximate, as of 2026 — check each site for current details.
Which should you pick?
- Quick manual check, no signup, don’t mind it being public: Mailinator’s public inboxes are perfect.
- Need SMS / 2FA-by-text testing: Mailinator (or Mailosaur / MailSlurp) — Devmailr is email-only.
- Automating email tests in CI — private inboxes, code extraction, low cost: that’s exactly what Devmailr is for.
If your job is “read the verification email in an automated test,” try the create → wait → extract flow in the CI/CD guide. For a broader survey, see the best disposable email APIs for testing.
Try it in two minutes
Create a disposable prefix@devmailr.app inbox over the API, send mail to it from your app, and read it in your tests. Free plan, no card required.