Gemessen am 2026-07-04 · öffentliches DNS
Ist 53.com gegen E-Mail-Spoofing geschützt?
Ja — 53.com setzt DMARC durch (p=reject).
Haltung unverändert seit dem 2026-06-19
Stärker geschützt als 76 % der Banken in Vereinigte Staaten
80 % der Branche setzt bereits p=reject durch
A
DMARC
p=reject
SPF
-all
DKIM
3 Selektor(en)
BIMI-Logo veröffentlicht — erscheint in unterstützenden Postfächern
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; sp=reject; fo=1; pct=100; ri=3600; rua=mailto:DMARC-Reports@53.com; ruf=mailto:DMARC-Reports@53.comWas das bedeutet
- • Politique p=reject : protection maximale contre l’usurpation.
- • Au moins une clé DKIM valide publiée.
Verlauf
- 2026-06-26Erste MessungGeschützt (p=reject)
Über Fifth Third Bank
Fifth Third Bank is a major financial institution operating in France under the domain 53.com. As a banking establishment, the bank manages a significant volume of electronic communications intended for its clients, employees, and business partners. Its email scope encompasses administrative correspondence, banking service notifications, security alerts, account statements, and institutional communications from its internal departments.
In the financial sector, securing the messaging domain represents a critical issue. Fifth Third Bank must prevent domain spoofing of 53.com, which is particularly sensitive given the trust clients place in official banking communications. Phishing attempts and identity theft pose major risks that could compromise the institution's reputation and customer data security.
As an entity in the regulated financial sector, Fifth Third Bank is subject to enhanced cybersecurity obligations, particularly under the NIS2 Directive and the DORA regulation (Digital Operational Resilience Act) applicable to critical enterprises. These regulatory frameworks mandate robust authentication of electronic communications and strict management of email domain-related risks.
Rigorous implementation of the DMARC protocol on 53.com, combined with SPF and DKIM mechanisms, enables Fifth Third Bank to validate the authenticity of its communications, detect spoofing attempts, and maintain user trust. This email authentication infrastructure constitutes a fundamental element of its cybersecurity and regulatory compliance strategy, protecting both institutional communications and customer interactions from malicious exploitation.