Out of the 300 most visited Danish webshops, 91 currently do not have the optimal DMARC policy on their domain.
28. januar 2026
Many marketing professionals glaze over when DKIM, SPF and DMARC are mentioned - and I completely understand, but it's actually important for marketing to have under control.
It is absolutely crucial for whether the marketing emails you send actually reach the recipients.
In this article, I won't go into all the details, but instead focus on one simple part of the technical aspects that can quickly tell you, sitting in marketing, whether you have it under control or not:
The one thing you can check is:
Have you defined a DMARC policy that tells Gmail, Hotmail and all the other email systems that they may reject emails if something is sent that appears to come from your domain but cannot be verified?