Connect n8n's visual workflow automation to MultiMail for agent-aware email sending, reading, and management — with configurable human oversight at every step.
n8n is a powerful workflow automation platform with 400+ integrations and a visual builder that now includes AI agent capabilities. By connecting n8n to MultiMail, your workflows gain access to email infrastructure designed specifically for AI agents, with oversight modes that prevent runaway automation.
Traditional n8n email nodes send messages directly without review. MultiMail replaces this with agent-aware email that supports graduated trust: start in gated_send mode where every outbound email requires human approval, then progress to monitored or autonomous as confidence builds.
Integration uses n8n's HTTP Request node to call the MultiMail REST API, or you can configure the MCP server (@multimail/mcp-server) with n8n's AI agent nodes for native tool discovery.
n8n workflows can trigger thousands of emails from a single event. MultiMail's oversight modes gate every outbound message, ensuring a human reviews emails before delivery — critical for workflows processing webhooks or batch data.
n8n's AI agent nodes can compose emails autonomously. MultiMail's oversight ladder (gated_all, gated_send, monitored, autonomous) lets you start with full approval and relax controls as the workflow proves reliable.
MultiMail tracks email threads automatically. Your n8n workflows can retrieve full conversation history with the get_thread endpoint, enabling context-aware reply workflows that maintain thread continuity.
Every email action through MultiMail is logged with the originating workflow context. This provides a complete audit trail showing which n8n workflow triggered each email, essential for compliance and debugging.
n8n workflows can search, add, and manage contacts through MultiMail's API, enabling CRM-style email automation where your workflows maintain relationship context across interactions.
No code, no dashboard. Paste this to your AI agent — it connects MultiMail, creates an inbox, and builds the flow for you.
Sign up at multimail.dev, create a mailbox, and generate an API key from your dashboard. Your key will start with mm_live_.
In n8n, go to Credentials and create a new Header Auth credential with the name 'Authorization' and value 'Bearer $MULTIMAIL_API_KEY'.
Add an HTTP Request node to your workflow. Set the URL to https://api.multimail.dev/v1/mailboxes/{mailbox_id}/send and configure the body with to (an array), subject, and markdown fields.
Connect a Manual Trigger or Schedule Trigger to your HTTP Request node and execute the workflow. If using gated_send mode, check the MultiMail dashboard to approve the pending email.
If your mailbox uses gated_send mode (the default), review and approve pending emails in the MultiMail dashboard before they are delivered.
Email infrastructure built for AI agents. Verifiable identity, graduated oversight, and a hosted MCP server. Formally verified in Lean 4.