Connect Trigger.dev tasks to MultiMail's REST API for retry-safe email sends with oversight controls, approval gating, and full audit logging across every background job.
Trigger.dev handles the hard parts of background job orchestration — retries, scheduling, durable execution, and event-driven triggers. MultiMail handles the hard parts of email for AI agents — deliverability, oversight controls, and audit logging. Together they give you a complete pipeline for automated email workflows that remain under human control.
The integration is REST-based. Trigger.dev tasks call MultiMail's API directly using fetch, so there is no additional SDK to install. Any task that needs to send, read, or process email makes an authenticated HTTP request to https://api.multimail.dev.
Trigger.dev's retry semantics pair well with MultiMail's idempotent send API. A task that fails mid-run can safely retry the send_email call — passing a stable idempotency_key ensures recipients never receive duplicates even when a job re-executes.
For teams running agentic workflows, MultiMail's oversight modes let you gate automated sends through a human-approval queue without changing your task logic. A job running against a gated_send mailbox queues the email for approval rather than delivering immediately. Your task code stays the same; only the mailbox policy changes.
Trigger.dev retries failed tasks automatically. MultiMail's send_email endpoint is idempotent when you supply a stable idempotency_key, so retried tasks never produce duplicate sends to recipients.
Switch a mailbox from autonomous to gated_send mode and every automated send from that task enters an approval queue. Your Trigger.dev task code is unchanged — the policy lives in the mailbox configuration, not in the job logic.
MultiMail logs every send, read, reply, and decide_email call with the API key, timestamp, mailbox, and outcome. For compliance with SOC 2 or GDPR audit requirements, background job email activity is fully traceable.
Use Trigger.dev's cron schedules to poll check_inbox on a fixed interval, then read_email for each new message. This gives you a durable, retryable inbound-processing pipeline without managing a separate webhook listener.
Start new agentic workflows in gated_all mode so every action requires human approval. Promote to monitored or autonomous as confidence grows. MultiMail's graduated oversight maps directly to Trigger.dev workflows at any maturity stage.
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 (e.g. jobs@acme.multimail.dev), and copy your API key from the dashboard. Set the mailbox oversight mode to gated_send during development so you can review sends before they reach recipients.
Store your MultiMail API key as a secret in the Trigger.dev dashboard so it is available to all tasks at runtime without appearing in source code.
Write a Trigger.dev task that calls the MultiMail send_email endpoint. Include an idempotency_key derived from your job ID so retries don't produce duplicate sends.
Deploy to Trigger.dev and trigger the task. Because the mailbox is in gated_send mode, the email will appear in your MultiMail approval queue rather than delivering immediately — verify the content before approving.
Once you've reviewed several sends and are confident in the output, change the mailbox oversight mode to monitored or autonomous from the MultiMail dashboard. No code changes are required — tasks continue calling send_email identically, but delivery now happens immediately.
Email infrastructure built for AI agents. Verifiable identity, graduated oversight, and a hosted MCP server. Formally verified in Lean 4.