DMARC and NIS2 requirements: why p=reject matters

DMARC at p=none is a start; p=reject is the control that counts for supply-chain security. Relay checks your SPF, DKIM and DMARC and shows which senders fail.

An English translation of this page is coming soon. In the meantime, the Dutch version is authoritative: read it in Dutch →. For legal documents the Dutch version governs for NL/BE customers.