Virtual inboxes and no-send capture modes
Create inboxes that safely capture outbound mail from staging, QA, and CI without letting messages reach real recipients.
Capture, inspect, and verify email safely
Route non-production email into isolated inboxes, then assert links, codes, headers, and content in your test pipeline.
Trusted by top companies worldwide
Built for release teams
MailSlurp features for safe email capture and release QA
Route non-production mail into controlled inboxes, inspect the exact payload, and turn message checks into a repeatable release gate.
Explore
SMTP credentials plus API inbox control
Point existing apps at MailSlurp SMTP endpoints while still managing inbox lifecycle, expiry, and metadata through the API.
Wait APIs and full message inspection
Wait for the exact message you expect, then inspect HTML, text, headers, links, recipients, and attachments before release.
Webhooks and CI-friendly failure signals
Push sandbox events into downstream checks, keep message artifacts for failed runs, and stop builds when delivery or content regressions appear.
Connect any SMTP-capable app
Point your app at sandbox credentials and start capturing test traffic in minutes.
Keep QA traffic out of real inboxes
Use no-send behavior and dedicated inboxes to protect production recipients.
Inspect source, links, and quality signals
Debug template issues and delivery blockers before they hit users.
Developer integration
Capture non-production email without risking real delivery
Create no-send inboxes for staging, QA, and CI so teams can inspect real payloads without letting traffic reach customer inboxes.
- Provision safe inboxes for staging, local dev, and CI runs
- Inspect delivered content, links, headers, and attachments before release
- Keep sandbox capture and downstream assertions in one API surface
Ready to test email safely before production?
Ready to test email safely before production?
Start with a free sandbox, then scale to API-driven release gates.