Medido el 2026-07-11 · DNS público
¿Está comerica.com protegido contra la suplantación de correo?
Todavía no — comerica.com solo observa (p=none); el correo suplantado aún puede entregarse.
Postura sin cambios desde el 2026-06-19
Más protegido que el 2 % de bancos en Estados Unidos
El 80 % del sector ya aplica p=reject
D
DMARC
p=none
SPF
~all
DKIM
ninguno encontrado
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=none; fo=1; rua=mailto:dmarc_rua@emaildefense.proofpoint.com; ruf=mailto:dmarc_ruf@emaildefense.proofpoint.com;Qué significa esto
- • Politique p=none : surveillance seule, aucun message non authentifié n'est bloqué.
- • 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 mediciónSolo observación (p=none)
Sobre Comerica
Comerica is a major financial institution operating in France, with comerica.com serving as a critical component of its digital communication infrastructure. As an organization within the banking and financial services sector, Comerica manages sensitive exchanges involving employees, clients, business partners, and regulatory authorities. Its email scope encompasses official correspondence, transactional notifications, internal communications, and digital services accessible to customers.
Within this highly regulated environment, securing the comerica.com domain is strategically essential. Risks of identity spoofing and phishing campaigns targeting @comerica.com addresses are substantial, potentially compromising customer trust, facilitating financial fraud, and damaging institutional reputation. Threat actors routinely exploit poorly protected banking domains to launch disinformation campaigns or scams.
Comerica operates under a stringent regulatory framework including the NIS2 Directive (Network and Information Security Directive) and DORA (Digital Operational Resilience Act), which mandate elevated standards for email authentication and operational resilience. Robust DMARC implementation on comerica.com, complemented by SPF and DKIM protocols, represents a foundational measure for meeting these obligations and protecting the integrity of electronic communications.
The DMARC Observatory at dmarc.com monitors the evolution of Comerica's email security posture, providing visibility into authentication practices and contributing to strengthened trust in digital exchanges within the French financial sector.