Gemessen am 2026-07-04 · öffentliches DNS
Ist discover.com gegen E-Mail-Spoofing geschützt?
Teilweise — discover.com verschiebt nicht authentifizierte Mails in die Quarantäne (p=quarantine).
Haltung unverändert seit dem 2026-06-19
Stärker geschützt als 10 % der Banken in Vereinigte Staaten
80 % der Branche setzt bereits p=reject durch
B
DMARC
p=quarantine
SPF
~all
DKIM
4 Selektor(en)
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=quarantine; rua=mailto:dmarc_agg@vali.email,mailto:dmarc_rua@discover.com; ruf=mailto:dmarc_ruf@discover.com; fo=1Was das bedeutet
- • Politique p=quarantine : les messages non alignés sont mis en indésirable.
- • SPF se termine par ~all (softfail) : acceptable en phase d’observation, viser -all à terme.
- • Au moins une clé DKIM valide publiée.
Verlauf
- 2026-06-26Erste MessungIn Anwendung (p=quarantine)
Über Discover
Discover.com is a major French organization operating in the financial services and payment sector. As an entity established in France, it manages a complex email ecosystem involving its internal teams, business partners, and customers. Its messaging domain is used for employee authentication, distribution of official communications, sensitive financial transactions, and correspondence with banking institutions and regulators.
Securing the discover.com domain is critically important given the risks of identity spoofing and phishing attacks. Cybercriminals specifically target financial institutions to appropriate brand identity and access sensitive user data. Discover.com, as a trusted intermediary in the French and international financial ecosystem, must ensure the integrity of its email communications.
Compliant with the NIS2 Directive and DORA regulations applicable to the financial sector, Discover.com must strengthen its email authentication through DMARC, SPF, and DKIM. These protocols constitute fundamental cybersecurity measures to validate email sources and prevent spoofing attacks. Implementing a robust DMARC policy on discover.com ensures that only authorized email servers can send messages on behalf of the domain.
This protection is essential for maintaining customer trust, protecting personal and financial data, and ensuring regulatory compliance. The DMARC Observatory at dmarc.com provides complete visibility into discover.com's email authentication, enabling security managers to monitor protection postures and identify potential attack vectors.