Both, as you choose, assistant by assistant:
- With approval (default): the assistant prepares, you approve, it sends. Nothing goes out without your agreement.
- Direct send: the assistant sends on its own, within the daily cap you set.
The setting is separate for email and for SMS, in your account, AI Assistants (MCP) page, Connected assistants tab. SMS campaigns always wait for your approval.
Start with approval, switch to direct sending once you trust it: that is how you automate with peace of mind.