QA and test your email flows

Spin up real, disposable mailboxes to test signup, password-reset and transactional email — then assert on what actually arrived. No shared QA inbox to babysit, no flaky polling: each test run gets its own address and the delivered message is piped straight to your harness.

Real mailboxes for test runs

Testing email is hard when your fixtures are fake. zerotier.email hands you genuine mailboxes you can create on demand and throw away after, so your tests exercise the real delivery path — through SPF, DKIM and DMARC, exactly like a customer's mail. Use a fresh address for each signup, password-reset or transactional-email scenario, and you never have stale state bleeding from one run into the next.

Assert delivery via webhook

Point the test mailbox at a webhook and the delivered message — sender, subject and body — is POSTed to your test harness or CI the instant it arrives. Your suite waits on a real HTTP callback instead of polling an inbox on a timer, so checks are fast and deterministic. Assert that the reset link is present, that the confirmation copy is right, or that the email went out at all.

Verification-code testing

Flows that gate on a one-time code are notoriously awkward to automate. Have the mailbox extract the verification code and deliver just the digits to your webhook, and your test can complete the 2FA or email-confirmation step without a human in the loop. End-to-end coverage of login and onboarding becomes a normal, scriptable assertion.

No shared QA inbox to babysit

The old way — one team inbox everyone logs into, full of overlapping test mail — is exactly what causes flaky runs and finger-pointing. With a mailbox per test, every run is isolated: no collisions, no cleanup ritual, no password shared around the team. If you want a deeper look at the options for getting mail into your systems, see ways to forward email to Telegram.

Free to start

The free plan includes one real mailbox with webhook delivery — enough to wire up your first assertions. Running a whole suite that needs an address per test? Pro unlocks unlimited mailboxes. The overview has the rest of the picture.