Documentation
Operator guides
Full documentation lives in the IWS Console — the same guides power 3LAY operators. Sign in with your Interlace iLink to access tenant-scoped examples.
Getting started
Provision domains, verify DNS, and send your first message.
API reference
HTTP endpoints, authentication, and request shapes.
SMTP & API keys
Generate credentials for Postal HTTP and SMTP relay.
Domains
SPF, DKIM, DMARC, and Cloudflare auto-configuration.
Webhooks
Delivery, bounce, and complaint event streams.
Troubleshooting
DNS propagation, suppression lists, and deliverability checks.