Introduction

Molted Email is agent-native email infrastructure. It gives you a policy engine, deliverability monitoring, and smart routing — all in one platform.

What you can do

• Send email via API — a single POST /v1/send/request endpoint with policy enforcement, rate limiting, and delivery tracking built in.
• Send in batch — process up to 500 recipients, classifications, or recommendations in one request.
• Humanize emails — LLM-powered rewriting that gives your automated emails a natural, human tone.
• Simulate sends — dry-run against the policy engine to pre-check sends without side effects.
• Track delivery — see real-time status for every email: queued, sent, delivered, bounced, complained, or failed.
• Receive inbound email — classify intent, route to handlers, and flag messages that need human review.
• Manage contacts — sync contacts and accounts, track lifecycle stages and deal stages.
• Enforce suppressions & consent — manage suppression lists and record legal consent bases for compliance.
• Build journeys — create multi-step email sequences with delays, branching, and event-triggered execution.
• Segment contacts — define dynamic segments with filter groups, nested logic, and async computation.
• Run experiments — A/B test subject lines, templates, and timing with statistical significance.
• Monitor analytics — contact fatigue scores, send velocity, deliverability rates, and outcome attribution.
• Coordinate agents — register agents, acquire contact leases, and run consensus votes for multi-agent setups.
• Stream events — subscribe to real-time events via SSE with filtering and replay support.
• Manage sending domains — add and verify your domains with DKIM, SPF, and DMARC records.
• Manage billing — upgrade plans, view usage, and access the billing portal.

Quick links

Getting started

• Quickstart — sign up, add a domain, send your first email in five minutes.
• Authentication — API key setup and usage.
• SDK Reference — install and use the @molted/mail TypeScript SDK.
• Domains — add and verify your sending domains.

Sending

• Sending Email — full API reference for the send endpoint.
• Batch Operations — send, classify, and recommend in bulk.
• Humanizer — LLM-powered email rewriting.
• Policy Simulation — dry-run sends against the policy engine.

Receiving

• Mailboxes — create and manage inbound mailboxes.
• Inbound Email — intent classification and routing.

Contacts & compliance

• Contacts & Accounts — sync and manage your contact data.
• Suppressions & Consent — suppression lists and consent management.

Automation

• Journeys — multi-step email sequences.
• Segmentation — dynamic contact segments.
• Experimentation — A/B tests and holdout experiments.

Agents

• Agent Coordination — leases, heartbeats, and consensus votes.
• Event Streaming — real-time SSE event subscriptions.

Reference

• Errors — every policy block reason explained.
• Rate Limits — sending limits by plan.