Medido el 2026-07-11 · DNS público
¿Está marcus.com protegido contra la suplantación de correo?
Sí — marcus.com aplica DMARC (p=reject).
Postura sin cambios desde el 2026-06-19
Más protegido que el 22 % de bancos en Estados Unidos
El 80 % del sector ya aplica p=reject
A
DMARC
p=reject
SPF
~all
DKIM
ninguno encontrado
BIMI + marca verificada (VMC) — tu logo, autenticado
Cómo corregirlo
Thomas, tu CISO virtual con IA, identifica cada fuente, escribe el DNS exacto y lleva tu dominio de p=none a p=reject con total seguridad.
Registro publicado
v=DMARC1; p=reject; rua=mailto:dmarc_rua@emaildefense.proofpoint.com,mailto:gs-dmarc-marcus-aggregate@marcus.com; ruf=mailto:dmarc_ruf@emaildefense.proofpoint.com,mailto:gs-dmarc-marcus-forensic@marcus.com; fo=1Qué significa esto
- • Politique p=reject : protection maximale contre l’usurpation.
- • SPF se termine par ~all (softfail) : acceptable en phase d’observation, viser -all à terme.
- • Aucune clé DKIM trouvée sur les sélecteurs courants (le domaine peut utiliser des sélecteurs non standards).
Historial
- 2026-06-26Primera mediciónProtegido (p=reject)
Sobre Marcus
Marcus is a French organisation operating under the marcus.com domain. As an entity based in France, it manages a complex email ecosystem encompassing internal communications with its employees, exchanges via its digital services, and all official correspondence. These communication flows represent a critical vector of trust and legitimacy for the organisation.
Securing marcus.com through DMARC deployment is of paramount strategic importance in light of threats from identity spoofing and domain hijacking. Attackers routinely target organisational domains to conduct phishing campaigns, compromise institutional reputation, and gain access to sensitive data. For a French organisation, these risks are accompanied by increasingly stringent regulatory obligations, particularly through the NIS2 Directive and DORA regulation, which mandate enhanced cybersecurity measures and email authentication protocols.
Implementing a robust DMARC strategy for marcus.com enables the authentication of legitimate messages through SPF and DKIM mechanisms, while establishing clear policies for handling non-conformant emails. This protects both internal and external stakeholders against spoofing attempts, strengthens regulatory compliance, and reinforces overall cybersecurity governance.
The DMARC Observatory provides transparent monitoring of email authentication deployment for marcus.com, offering the organisation visibility into its security posture and opportunities for improvement in protecting critical communication channels. This visibility supports informed decision-making on email security infrastructure investments.