AgentMail email signature
An AgentMail inbox sends mail on its own. Signatoro gives it a signature to put on that mail, fetched at send time instead of pasted in once.
What AgentMail is
AgentMail gives an AI agent its own inbox to send and receive mail from (agentmail.to, checked 1 October 2026).
How the signature gets there
The agent fetches Signatoro at send time, over MCP or the REST API.
Not built in. Not a native integration, not a marketplace listing, not a company-wide key.
Each agent is its own Signatoro person, with a signature of its own to fetch.
One signature, any agent you add or swap in
Companies try more than one AI agent, or switch which one sends their mail. Because the signature stays in Signatoro rather than inside any one agent, adding a new one or replacing AgentMail with something else later does not mean building the signature again - the new agent is added as its own Signatoro person and fetches the same saved signature at send time.