Mailchimp integration issues can be frustrating, but most common problems have straightforward solutions. Here's how to troubleshoot typical issues:

Before Troubleshooting:

• Keep lists under 30 fields (Mailchimp's limit)
• Ensure all blocks connected to an audience use identical fields
• Test with new email addresses that aren't already subscribed

Common Issues and Solutions:

Form Submission Errors:

1. If you receive a submission error email:
   • Check if Mailchimp flagged the email as suspicious
   • Verify form-to-Mailchimp connection
   • Reconnect the form to Mailchimp through the Storage tab

Fix Connection Problems:

1. Uncheck required fields in Mailchimp:

   • Navigate to Audience → Signup forms
   • Access "Audience fields and MERGE tags"
   • Uncheck all Required boxes (except email)

2. Reset Mailchimp connection:

   • Disconnect form in Squarespace
   • Remove Squarespace integration in Mailchimp
   • Reconnect and test with new submission

Subscriber Issues:

• Missing confirmations: Check Mailchimp's double opt-in settings
• Submission/subscriber mismatch: Consider disabling double opt-in
• Spam folder problems: Review Mailchimp's DMARC policy solutions

Additional Tips:

• Use a new, empty audience if existing one causes problems
• Enable Google reCAPTCHA to prevent spam
• Manually add legitimate emails flagged as spam
• Reconnect all forms after resetting Mailchimp integration

For Mailchimp account-specific issues or extension problems, consult their support documentation.

Related Articles

Previous Articles