Medido el 2026-07-11 · DNS público
¿Está marcus.co.uk protegido contra la suplantación de correo?
Sí — marcus.co.uk aplica DMARC (p=reject).
Postura sin cambios desde el 2026-06-19
Más protegido que el 39 % de bancos en Reino Unido
El 70 % del sector ya aplica p=reject
A
DMARC
p=reject
SPF
-all
DKIM
ninguno encontrado
Apto para BIMI: publica tu logo para mostrarlo en los buzones
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; ruf=mailto:dmarc_ruf@emaildefense.proofpoint.com; fo=1Qué significa esto
- • Politique p=reject : protection maximale contre l’usurpation.
- • 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 domain marcus.co.uk, established in the United Kingdom. As an organisational entity, Marcus manages a complex email perimeter encompassing internal communications among employees, exchanges with its integrated digital services, and all official correspondence with partners and clients. This volume of email flows represents a prime attack vector for cybercriminals seeking to impersonate the organisation or compromise its staff through targeted phishing campaigns.
Implementing a robust DMARC strategy on marcus.co.uk is of major strategic importance. In France, organisations face increasing obligations under the NIS2 framework (revised cybersecurity directive) concerning critical and digital infrastructure security. Concurrently, certain financial or highly regulated sectors must comply with similar or complementary provisions such as DORA, which impose strict standards for email authentication and electronic communication controls.
Without secure email authentication, Marcus faces risks of reputation compromise, domain spoofing, and regulatory compliance violations. Implementing SPF, DKIM and DMARC on marcus.co.uk forms the indispensable foundation for ensuring that legitimate messages from the organisation are neither blocked nor impersonated by malicious third parties. This DMARC Observatory enables visibility into Marcus's email security posture and contributes to the continuous improvement of its digital infrastructure protection. By monitoring and strengthening authentication protocols across its email ecosystem, Marcus reinforces stakeholder trust while aligning with international cybersecurity best practices.