Require human approval before your agent sends email

Short summary

A guide to building a human approval queue for AI email agents using the Nylas Drafts API. Instead of letting agents send directly, they create drafts in the mailbox's Drafts folder; a human reviews and approves, and the approved draft is sent byte-for-byte unchanged. This ensures what the reviewer saw is exactly what went out, leveraging email infrastructure rather than reinventing a buffer queue.

• •Agents draft instead of send, using the mailbox's native Drafts folder as an approval queue
• •Sending an approved draft is a single atomic API call — no reassembly or regeneration race conditions
• •Approval state lives in your database since Agent Accounts don't support custom metadata; Nylas stores the message, your app stores the verdict

Generated with AI, which can make mistakes.