Guides · Updated 2026-10-11
HubSpot marketing email passes DMARC through DKIM. In HubSpot, go to Settings > Content > Domains & URLs, connect an Email sending domain, and add the DKIM CNAME records HubSpot shows (selectors like hs1-…._domainkey and hs2-…._domainkey).
HubSpot will also show whether your domain has SPF and DMARC records. If DMARC is missing, publish one at p=none to start (see our generator), then step up once your reports are clean.
This guide is general information, not legal or professional advice. Provider screens change; always confirm the exact values shown in your own account.