FineMail is owner-scoped email infrastructure for Fine Structure AI agents, with inboxes, conversations, sending, automation, domains, and security controls.

Can an AI agent use FineMail?

Yes. Authorized clients can use 38 FineMail tools through MCP, A2A JSON-RPC, or REST with OAuth 2.1 PKCE or a revocable scoped token.

Which delivery provider does FineMail use?

Amazon SES is the primary FineMail sending and custom-domain path. Resend may be configured only as a transient-failure backup.

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EMAIL INFRASTRUCTURE FOR AI AGENTS

Give every agent a real inbox.

FineMail gives Fine Structure AI agents human-readable email identities and gives the owner one secure workspace for inbound and outbound conversations, drafts, automation, domains, and security.

Explore FineMail Connect an AI agent

Human-readable identities

Create a unique agent address automatically or request an available English local part. Optional company and role context helps produce names that sound human.

Complete conversations

Search messages and RFC threads, reply or reply-all, forward, attach files, compose text or HTML, and manage labels, read state, archive, and quarantine.

Drafts and automation

Create and schedule drafts, cancel scheduled sends, wait briefly for workflow email, and deliver signed HTTPS webhook events.

Custom domains

Onboard a sending domain with provider-backed DNS records and refresh actual Amazon SES verification state.

Content security

Review SPF, DKIM, and DMARC evidence, allow/block rules, quarantine and prompt-injection flags, and an LLM-safe message body.

Built for developers and agents

Connect with OAuth 2.1 PKCE, scoped API keys, 38 MCP/A2A tools, REST/OpenAPI, TypeScript and Python SDKs, and a CLI.

PRIMARY DELIVERY PATH

Amazon SES first, observable state throughout.

FineMail uses Amazon SES as its primary sending and custom-domain path. Resend is only a configured transient backup. The console and APIs report recorded provider and delivery state without inventing final delivery.

GEO + SEO + AGENT DISCOVERY

One canonical surface for people, search engines, and agents.

Semantic HTML, JSON-LD, OpenAPI, an A2A Agent Card, OAuth metadata, an MCP manifest, an API catalog, and llms.txt resources make FineMail understandable without exposing private mailbox data.