Here's a more concise, feature-snippet-optimized version of the MailChimp and Squarespace integration guide:

Connect MailChimp to Squarespace by following these essential steps:

1. Set Up Domain Authentication (Custom Domains)

• Create two CNAME records in DNS Settings:
  • First Record: Host = k2._domainkey, Data = dkim2.mcsv.net
  • Second Record: Host = k3._domainkey, Data = dkim.mcsv.net

2. Connect Forms and Newsletters

• Click Storage in block editor
• Select Connect next to MailChimp
• Log into MailChimp
• Choose your audience list

Key Features:

• Newsletter pop-ups
• Checkout subscription options
• Blog-to-email campaigns
• Commerce store synchronization

Important Guidelines:

• Use separate MailChimp audiences for different forms
• Limit form fields to 30 maximum
• Keep field values under 255 characters
• Ensure identical fields when connecting multiple blocks
• Consider keeping double opt-in enabled for compliance

Tips for Success:

• Create empty MailChimp audiences for new forms
• Match form fields exactly when using multiple blocks
• Verify field settings in both platforms
• Monitor traffic sources through analytics

Troubleshooting:

• If forms don't save, check required fields in MailChimp
• Allow time for CNAME records to propagate
• Reconnect blocks if field modifications are made
• Use separate audiences for different form structures

Remember: You can connect multiple MailChimp accounts to different forms, but use only one audience per form block for optimal performance.

Connection Options:

• Form blocks
• Newsletter blocks
• Homepage forms (version 7.0)
• Commerce integration
• Blog RSS feeds

For optimal results, regularly review your integration settings and maintain consistent field structures across connected forms.

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