Gemessen am 2026-07-04 · öffentliches DNS
Ist marcus.co.uk gegen E-Mail-Spoofing geschützt?
Ja — marcus.co.uk setzt DMARC durch (p=reject).
Haltung unverändert seit dem 2026-06-19
Stärker geschützt als 39 % der Banken in Vereinigtes Königreich
70 % der Branche setzt bereits p=reject durch
A
DMARC
p=reject
SPF
-all
DKIM
keiner gefunden
BIMI-fähig: Veröffentliche dein Logo, um es in den Postfächern anzuzeigen
So behebst du es
Thomas, der DMARC-Copilot, findet jede Quelle, schreibt das exakte DNS und bringt deine Domain sicher von p=none zu p=reject.
Veröffentlichter Eintrag
v=DMARC1; p=reject; rua=mailto:dmarc_rua@emaildefense.proofpoint.com; ruf=mailto:dmarc_ruf@emaildefense.proofpoint.com; fo=1Was das bedeutet
- • Politique p=reject : protection maximale contre l’usurpation.
- • Aucune clé DKIM trouvée sur les sélecteurs courants (le domaine peut utiliser des sélecteurs non standards).
Verlauf
- 2026-06-26Erste MessungGeschützt (p=reject)
Über 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.