Pre-release checks for signup, reset, billing, and alerts
Validate customer-critical transactional workflows before launch so activation, recovery, and billing journeys do not fail quietly after deployment.

Run repeatable inbox placement and deliverability tests with MailSlurp so teams can validate receipt, sender posture, and message quality before releases, migrations, and major campaigns.
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Product features
Use MailSlurp for inbox placement and deliverability tests that combine receipt evidence, sender-auth checks, and message QA before launch-critical email goes live.
Send real messages into MailSlurp-managed inbox cohorts so teams can verify whether critical templates arrive where expected instead of assuming delivery from provider logs alone.
Combine inbox placement evidence with SPF, DKIM, DMARC, blacklist, and header review so remediation starts with the most likely failure mode.
Use the same MailSlurp workflow before launches, after DNS changes, and during provider migrations so the test is not reinvented every time risk increases.
Move from placement evidence into template, link, image, and compatibility review when the issue is not only sender trust but also message quality.
Validate customer-critical transactional workflows before launch so activation, recovery, and billing journeys do not fail quietly after deployment.
Confirm placement, sender posture, and content quality before important campaigns or lifecycle changes go out to production audiences.
Re-run deliverability tests after migrations and high-impact edits so teams can prove the new path behaves as expected before volume ramps.
Catch SPF, DKIM, DMARC, MX, and domain health regressions before they impact trust.

Send real messages into MailSlurp-managed inbox cohorts so teams can verify whether critical templates arrive where expected instead of assuming delivery from provider logs alone.

Combine inbox placement evidence with SPF, DKIM, DMARC, blacklist, and header review so remediation starts with the most likely failure mode.

Use the same MailSlurp workflow before launches, after DNS changes, and during provider migrations so the test is not reinvented every time risk increases.
Developer integration
Provision inboxes, wait for matching messages, and move from a one-off deliverability check into a repeatable test workflow your team can run before every important release.
Next step
Start with a free account, then use the docs and SDKs to wire the workflow into your app or test stack.