How to fix missing dmarc on Wix Studio

Steps for Wix Studio

1. In Wix Studio, open the site project and go to the Site Dashboard → Settings → Domains.
2. Follow the same DNS steps as Wix above — either manage the TXT record in Wix's DNS panel (if the domain is Wix-managed) or log in to your external DNS provider.
3. Add a TXT record: Host = '_dmarc', Value = v=DMARC1; p=none; rua=mailto:dmarc@yourdomain.com
4. Ensure any transactional email (Wix automations, contact forms) is authenticated with SPF/DKIM via Wix's email settings before escalating to p=quarantine.

What is missing dmarc?

DMARC (Domain-based Message Authentication, Reporting & Conformance) is a free email security standard that works alongside SPF and DKIM. You publish a single DNS TXT record at a special subdomain (_dmarc.yourdomain.com) that tells the world's mail servers what to do when someone sends an email pretending to be from your domain — for example, whether to let it through, quarantine it to spam, or reject it outright. Without this record, anyone on the internet can spoof your brand's email address and there is nothing in place to stop it or report it to you.

Without a DMARC record, criminals can send phishing emails that appear to come from your store's domain — stealing customer passwords, payment details, or credentials — and your brand takes the reputational hit. Google and Yahoo now require DMARC for bulk senders, meaning stores without it face deliverability problems: legitimate order confirmations, shipping notices, and marketing emails are more likely to land in spam or be rejected entirely. This directly harms revenue through lost transactional emails and undelivered promotions. OWASP classifies this under A05:2021 Security Misconfiguration because a missing DMARC record is a straightforward, avoidable configuration gap that exposes your customers and business to serious harm.

See the complete Missing dmarc guide for every platform and the full background.