What this integration does
The Mailchimp-sync plugin in VeloCMS listens for subscribe and unsubscribe events from the blog_members collection and mirrors them to a Mailchimp audience list in real time. When a reader enters their email and confirms their subscription on your blog, they appear in your Mailchimp audience automatically — no manual export, no Zapier subscription, no duplicate data entry. When a reader clicks the unsubscribe link in any VeloCMS email, VeloCMS marks the corresponding Mailchimp contact as unsubscribed — it is not deleted, so its history stays intact — which keeps your Mailchimp suppression list accurate and your GDPR obligations met. The integration is fire-and-forget: once you enter your Mailchimp API key and Audience List ID in Admin → Plugins → Mailchimp Sync, it runs silently in the background.