Clay doesn't send emails directly - we integrate with email sequencing tools to push your finalized outreach data.
We integrate natively with Smartlead, Instantly, Salesloft, Outreach, and HubSpot. You can connect to any tool (including Mailchimp) using our HTTP API.
We also have a beta native email sequencing feature that allows you to send sequences directly from Clay.
For Mailchimp specifically, you'd use our HTTP API integration to push your Clay data and sequences to your Mailchimp campaigns.