Subscriber authentication helps protect your email campaigns from being marked as spam by using reCAPTCHA or confirmation emails. Here's what you need to know:

Authentication Options

When using Squarespace storage, you must enable at least one of these methods:

• Google reCAPTCHA: An invisible security feature that blocks bot submissions
• Confirmation Email: Requires subscribers to verify their email address

These options are not available for:

• Checkout newsletter sign-ups
• Manually added emails
• Imported email addresses

Google reCAPTCHA

This invisible security check works automatically on:

• Forms with required email fields
• Newsletter blocks using Squarespace storage
• Promotional pop-ups

reCAPTCHA is enabled by default for new forms and newsletter blocks.

Confirmation Emails

New subscribers receive a verification email before being added to your list. These are sent for:

• Forms with required email fields
• Newsletter blocks with confirmation enabled
• Promotional pop-ups with confirmation enabled
• Free Acuity Scheduling opt-ins
• Free member site sign-ups
• Cover page newsletters (v7.0)

Customizing Confirmation Emails:

1. Go to Email Campaign Settings > Authentication Options
2. Click Customize Email
3. Edit text, style, and layout
4. Modify subject line and preview text
5. Test the email
6. Save changes

Troubleshooting Tips:

If subscribers aren't receiving confirmation emails:

1. Check spam folders
2. Add [email protected] to contacts
3. Review email client restrictions
4. Verify correct email address
5. Try an alternate email address

For 404 errors when confirming:

1. Reset form storage connection
2. Reconnect to mailing list
3. Ensure domain points to Squarespace

Note: EU residents should ensure authentication settings comply with local regulations.

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