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Webhook Integration Guide

Configure robust webhook destinations for reliable message automation.

1 min readUpdated February 24, 2026Edit this page

Webhook is the most flexible MailHook integration type.

Endpoint requirements

  • Publicly reachable HTTPS endpoint.
  • Predictable response behavior.
  • Server logging for request inspection.

Reliability recommendations

Use idempotency

Handle duplicate requests safely downstream.

Return fast

Acknowledge quickly and defer heavy processing internally.

Validate signatures/payloads

Apply your own validation rules before side effects.

Monitoring checklist

  • Track non-2xx response rates.
  • Alert on sustained retrying/dead statuses.
  • Keep structured logs keyed by message identifiers.