200 messages per account per day. That's the free-plan send ceiling on a Nylas Agent Account, and it's a surprisingly useful number to design an outreach agent around — it forces the kind of pacing that keeps cold email from becoming spam, and paid plans drop the daily cap by default when you outgrow it.
The bigger idea: instead of sending campaigns through a rep's mailbox or a send-only API, the agent gets its own address. sales-agent@yourcompany.com is a real mailbox — it sends, it receives replies, it owns a calendar. Agent Accounts are in beta, but the model is straightforward: each account is just another grant, so the Messages, Threads, Events, and Webhooks endpoints you'd use for a connected Gmail account work unchanged.
What the loop looks like
The sales-outreach pattern from the product docs runs in three stages, all on one grant_id:
Send the campaign through the standard send endpoint.
