> ## Documentation Index
> Fetch the complete documentation index at: https://docs.partnero.com/llms.txt
> Use this file to discover all available pages before exploring further.
# Connect Mailchimp to your newsletter referral program
When [creating a newsletter referral program](/knowledge-base/newsletter-referral-programs/how-to-setup-a-newsletter-referral-program), you will be prompted to select your email service provider.
To connect Mailchimp:
1. Set up a newsletter referral program and select Mailchimp as the ESP upon creation:
2. Click **Create**.
3. Under **Program Settings**, click **Authorize** next to Mailchimp integration:
4. You will be redirected to a login and authorization page. Log in to your Mailchimp account:
5. Click **Allow** to authorize Partnero.
6. Once authorized, you will be returned to Partnero, where you can select the Subscriber and Destination lists:
7. Click **Update**.
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