Email Domain Authentication Guide: Prevent Spam Filtering

Custom email domain authentication helps prevent your email campaigns from being marked as spam. A custom email address matches your domain name (e.g., [email protected] for www.sampledomain.com).

Authentication Options:

1. Transfer domain to Squarespace (automatic authentication)
2. Manually add authentication records to DNS settings

Manual Authentication Process:

1. Find Authentication Records

• Access Email Campaign Settings
• Locate Sender Information
• Click Authenticate
• Note the two required DNS records

2. Add DNS Records First Record:

• Type: CNAME
• Host: squarespace._domainkey
• Data: squarespace-domainkey.squarespace-mail.com

Second Record:

• Type: TXT
• Host: _dmarc
• Data: [unique code provided]

Provider-Specific Instructions:

IONOS:

• Login to my.ionos.com/domains
• Select domain
• Click DNS
• Add records
• Save changes

GoDaddy:

• Access Domain Manager
• Navigate to Domain Settings
• Select Manage DNS
• Add both records
• Save changes

Google Domains:

• Login to Domains.google
• Click DNS icon
• Scroll to Custom resource records
• Add both records
• Save changes

Hover:

• Login to hover.com
• Select DNS
• Add both records
• Save changes

Namecheap:

• Access Domain List
• Select Manage
• Choose Advanced DNS Records
• Add both records
• Save changes

Important Notes:

• DNS propagation can take up to 72 hours
• Authentication is complete when "[Domain Not Authenticated]" disappears
• Contact your provider's support for specific guidance
• DMARC policy of p=reject requires domain authentication

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