SPF, DKIM and DMARC for Squarespace Email Campaigns
Short answer: Squarespace Email Campaigns mail passes Gmail, Yahoo and Microsoft checks when you turn on DKIM with your own domain
and publish a DMARC record at _dmarc (start with p=none). The exact records and clicks are below.
| SPF | — | Not needed: Squarespace sends campaigns with its own bounce address, so SPF can't align with your domain. DMARC passes through DKIM instead. Don't add a Squarespace include to your SPF record. |
|---|---|---|
| DKIM | CNAME / TXT | CNAME squarespace._domainkey → squarespace-domainkey.squarespace-mail.com, plus a DMARC TXT record Squarespace shows. Copy both exactly from the Verify Domain window. |
| DMARC | TXT at _dmarc | v=DMARC1; p=none; rua=mailto:dmarc@yourdomain.comStart with p=none and a
mailbox you read, or a free report address that turns the reports into a dashboard; build your own. |
Step by step
- In Squarespace open Marketing → Email Campaigns → Settings → Sender Details and add a sender address on your domain. Confirm it from the email Squarespace sends.
- Next to the domain click Verify Domain (or Authenticate) to see the records.
- Add the DKIM CNAME at your DNS host. Squarespace Domains users can do it under Domains → your domain → DNS.
- Wait for DNS (minutes, up to 48 hours), then click Authenticate Domain.
Mistakes that break it
- Already have a DMARC record? Keep it and skip Squarespace's: two DMARC records make DMARC fail completely.
- Some DNS panels add your domain for you: enter only
squarespace._domainkey, or the name gets doubled. - On Cloudflare, set the CNAME to DNS only (grey cloud), not proxied.
- Squarespace Email Campaigns is separate from your mailbox (Google Workspace or Microsoft 365): set those up with their own guide.
Check that it worked
After the fix, keep an eye on it: free DMARC monitoring shows every service that sends mail as your domain and which ones fail, in plain English.
Get it fixed on Fiverr
Prefer to do it yourself? Get the step-by-step Fix Kit ($15) – 19-page guide, checklist, 20+ providers.
Other setup guides
Google Workspace · Microsoft 365 · Zoho Mail · Hostinger Email · Titan Email · GoDaddy email (Microsoft 365 and Professional Email) · Namecheap Private Email · IONOS Mail · Proton Mail · Cloudflare Email Routing · Mailchimp · SendGrid · Amazon SES · Shopify Email · Klaviyo · HubSpot · Brevo · Mailgun · Postmark · Zendesk · Constant Contact · MailerLite · Kit (ConvertKit) · ActiveCampaign · Freshdesk · Intercom · Zoho Campaigns · Help Scout · Mailjet · Campaign Monitor · Salesforce Account Engagement (Pardot)