Transactional

Agent Email

Dedicated email addresses for AI agents with Gmail-like inbox management and Mailgun-like deliverability.

What is Agent Email?

Agent Email gives your AI agents their own dedicated email addresses with full bidirectional mailbox capabilities. Unlike transactional email — which is fire-and-forget (send a password reset, done) — Agent Email provides a complete inbox that agents can read, search, reply to, and manage programmatically.

Think of it as Gmail for agents meets Mailgun for deliverability:

Transactional EmailAgent Email
DirectionOutbound onlyFull bidirectional
InboxNo inboxFull inbox with read, search, labels
ThreadingNo thread trackingAutomatic thread management
IdentityShared senderDedicated mailbox per agent
Use caseNotifications, receiptsAgent communication, research, outreach

Key Features

  • Mailbox creation — Programmatically create email addresses for each agent (research-agent@agentmail.usetransactional.com or your custom domain)
  • Send and receive — Full outbound sending with the same 99.9% deliverability as transactional email, plus inbound processing with sub-2s latency
  • Inbox API — List, search, read, label, archive, and mark messages as read/unread
  • Thread tracking — Automatic threading via In-Reply-To and References headers with reply, reply-all, and forward support
  • Webhooks — Real-time notifications for incoming messages, bounces, and delivery events
  • Custom domains — Bring your own domain with full DKIM, SPF, and DMARC configuration
  • Per-agent authentication — Each mailbox gets isolated API keys and rate limits

When to Use Agent Email

Use CaseExample
Research agentsAgent emails experts, collects responses, synthesizes findings
Sales outreachAgent sends personalized outreach and handles replies
Customer supportAgent manages a support inbox and triages incoming requests
Workflow automationAgent coordinates with external services via email
Data collectionAgent sends surveys and processes responses

How It Works

Your Agent
    |
    v
tx.agentEmail.mailboxes.create({ name: 'my-agent' })
    |
    v
+-------------------------------+
|  Dedicated Mailbox            |
|  my-agent@agentmail.use...    |
|  - Send emails                |
|  - Receive inbound            |
|  - Read inbox                 |
|  - Manage threads             |
+-------------------------------+
    |
    v
Webhooks / Polling for new mail
  1. Create a mailbox — Your agent gets a dedicated email address
  2. Send emails — Deliver messages with the same infrastructure as transactional email
  3. Receive and read — Inbound emails are available via API in under 2 seconds
  4. Reply and thread — Maintain conversation context with automatic threading

Next Steps