Support intake with response-time expectations
Send immediate acknowledgements with clear SLA messaging while routing priority issues to staffed queues. That reduces duplicate follow-up email and sets the right expectation from the first reply.

Ship consistent acknowledgement, escalation, and after-hours reply behavior across support, order, and operations inboxes without brittle mailbox scripts.
Trusted by top companies worldwide



Product features
Build policy-driven email auto replies with routing rules, escalation paths, and audit trails for support, operations, and partner workflows.
Create reply rules on specific inboxes or catch-all addresses so acknowledgements stay attached to the mailbox that owns the workflow.
Trigger replies only when the inbound message matches the sender, recipient, subject, or attachment conditions your team has approved.
Use raw bodies or reusable templates, set response metadata like subject and reply-to behavior, and inject variables into deterministic inbox replies.
Review which rule fired, which inbound message triggered it, and how the automated reply behaved in production when a team needs an audit trail.
Send immediate acknowledgements with clear SLA messaging while routing priority issues to staffed queues. That reduces duplicate follow-up email and sets the right expectation from the first reply.
For ops mailboxes, auto replies can direct senders to incident dashboards, on-call contacts, or change windows while preserving a complete inbox audit trail.
Auto replies can deliver the next step for inbound orders, supplier updates, pricing requests, or partner workflows before a human handoff, improving response speed and reducing manual triage.
Create isolated addresses for users, tenants, releases, or tests without shared mailbox state.

Create reply rules on specific inboxes or catch-all addresses so acknowledgements stay attached to the mailbox that owns the workflow.

Trigger replies only when the inbound message matches the sender, recipient, subject, or attachment conditions your team has approved.

Use raw bodies or reusable templates, set response metadata like subject and reply-to behavior, and inject variables into deterministic inbox replies.
Integrate MailSlurp Seamlessly
Official plugins and SDKs for all major programming languages, frameworks, and test platforms. All functionality available via API or dashboard.

MailSlurp fits right into your existing development, testing, and CI/CD workflows. Deploy and iterate with confidence and actionable feedback.
Emails processed
500 million+
Infrastructure that scales.
Mobile networks
20+
Leverage global telecom networks.
Mature platform
10+ years
Stable and dependable.