Validate addresses before account creation or activation
Catch obvious risk and typo-driven failures early without forcing an unnecessarily hard block on uncertain users or creating avoidable support work.
Open email platformEmail verification API
Email verification API and email validation API for signup, import, and pre-send control
Treat verification as a workflow control, not a one-time cleanup. MailSlurp helps teams classify addresses, route uncertain records into review, and protect delivery quality across the contact lifecycle.
Trusted by teams shipping customer messaging
Trusted by teams at
Used by engineering, QA, lifecycle, and operations teams building and testing email and SMS workflows.
Product workflows
High-value verification workflows
Use the shortest path from evaluation to implementation.
Screen CRM and list imports before they affect production sends
Route uncertain records into review instead of poisoning send-critical workflows, CRM syncs, or support systems.
Open routing workflowsRe-check stale contacts before campaigns or high-value sends
Address quality changes over time. Verification at send time helps reduce bounce spikes, protect sender trust, and prevent wasted send volume.
See deliverability monitoringDeveloper integration
Use inbox APIs, SMTP, and webhook events in the same workflow
Start with SDK helpers for inbox creation and message waits, then move into event-driven routing when the workflow expands.
- Generated SDKs for major languages
- API + SMTP + IMAP support where needed
- Docs-backed patterns for inboxes and message assertions
Protect address quality
Use verification as a workflow control, not a one-time cleanup job
Introduce staged policies where address quality already changes business outcomes, then expand once the team trusts the review and evidence model.