Gemessen am 2026-07-04 · öffentliches DNS
Ist americanexpress.com gegen E-Mail-Spoofing geschützt?
Ja — americanexpress.com setzt DMARC durch (p=reject).
Haltung unverändert seit dem 2026-06-19
Stärker geschützt als 37 % der Banken in Vereinigte Staaten
80 % der Branche setzt bereits p=reject durch
A
DMARC
p=reject
SPF
-all
DKIM
keiner gefunden
BIMI + verifizierte Marke (VMC) — dein Logo, authentifiziert
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;fo=1;rua=mailto:dmarc_agg@auth.returnpath.net;ruf=mailto:dmarc_afrf@auth.returnpath.netWas 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 American Express
American Express is a major global player in financial services and payments, with a significant presence in France. The domain americanexpress.com serves as a critical communication channel for this organization, facilitating exchanges with customers, business partners, and internal employees. The email security challenges facing American Express are substantial: as a financial institution, it faces elevated risks of domain spoofing and phishing attacks that exploit the trust placed in its brand. Implementing robust DMARC authentication on americanexpress.com is strategically essential to verify legitimate messages and prevent cybercriminal campaigns impersonating the organization. Within the European regulatory context, the NIS2 Directive imposes strengthened cybersecurity requirements on critical entities in the financial sector, of which American Express is potentially a member. Similarly, DORA (Digital Operational Resilience Act) requires financial entities to meet high standards of operational resilience and digital risk management. Securing the americanexpress.com domain through appropriate DMARC policies directly contributes to compliance with these obligations and strengthens trust among end users. For an organization of this scale, observability and control of legitimate email traffic associated with americanexpress.com represent fundamental elements of the information security strategy and brand reputation protection.