Gemessen am 2026-07-04 · öffentliches DNS
Ist comerica.com gegen E-Mail-Spoofing geschützt?
Noch nicht — comerica.com beobachtet DMARC nur (p=none); gefälschte Mails können weiterhin zugestellt werden.
Haltung unverändert seit dem 2026-06-19
Stärker geschützt als 2 % der Banken in Vereinigte Staaten
80 % der Branche setzt bereits p=reject durch
D
DMARC
p=none
SPF
~all
DKIM
keiner gefunden
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=none; fo=1; rua=mailto:dmarc_rua@emaildefense.proofpoint.com; ruf=mailto:dmarc_ruf@emaildefense.proofpoint.com;Was das bedeutet
- • 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).
Verlauf
- 2026-06-26Erste MessungNur Beobachtung (p=none)
Über 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.