AgentMail

About AgentMail

## Intro AgentMail gives AI agents their own email inboxes through an API. Instead of connecting an agent to your personal Gmail, you create dedicated inboxes that the agent can send from, receive into and reply on, with full threads and attachments. It is built for the growing number of agents that need to email people: booking, outreach, support or anything that runs over email. Keeping agent email separate also protects your own inbox and sender reputation if an agent ever misbehaves. ## Key features - **Inboxes on demand.** Create inboxes by API, each with threads, labels, attachments, drafts and scheduled sending, so agents can hold real email conversations. - **Real-time events.** Webhooks and websockets notify your app the moment a new email arrives, which makes it easy to trigger an agent or an automation. - **Deliverability basics.** Custom domains, DKIM, SPF and DMARC setup, SMTP relay and a suppression list help agent email land in the inbox rather than spam. - **SDKs and MCP server.** Official SDKs and an MCP server let you wire AgentMail into Claude and other agent frameworks quickly. - **Inbox pods and metrics.** Group inboxes into pods, for example one per client, and track metrics on how your agents' email is performing. Because inboxes are created by API, you can spin one up for every user, customer or task rather than routing everything through a single shared address. That design is the main difference from a normal email provider, which assumes a human is sitting behind each mailbox and makes adding inboxes slow and manual. ## Best for AgentMail suits builders creating agents that talk to the outside world by email: an AI sales assistant that follows up with leads, a support agent that answers a shared inbox, or a scheduling bot. Agencies building agents for several clients can give each one its own inbox and domain. It is not a newsletter or marketing email platform, and it is not a mail app for humans. If you just need to send transactional emails from an app, a service like Resend is simpler. ## Pricing summary The Free plan includes 3 inboxes and 3,000 emails a month, capped at 100 a day, with no card. Developer is $20 a month for 10 inboxes and 10,000 emails. Startup is $200 a month for 150 inboxes. Enterprise is custom. Yearly billing saves 20%. Extra inboxes and domains cost $2 a month each on paid plans. ## Quick verdict AgentMail solves a specific problem well: giving agents a proper, separate email identity instead of borrowing yours. The free plan is enough to build and test an agent end to end. If your agent needs to send and receive email at any real volume, it is a cleaner and safer setup than hacking around a personal inbox. Pricing jumps sharply from Developer to Startup, so plan your inbox count early.

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