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End of TLS Client Authentication Certificates

All Topics, News, NoSpamProxy Cloud, NoSpamProxy Encryption, Tech & Support

Effective immediately, public CAs (certification authorities) are no longer permitted to use the Extended Key Usages (EKU) id-kp-clientAuth and id-kp-serverAuth simultaneously in TLS certificates. Those who do not comply with this rule will no longer be included in the Chrome Root Program and will therefore no longer appear in the Trust Store. We provide information about who is affected and what you should do now.

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19.02.2026/by Stefan Sturm
NoSpamProxy ermöglicht die DKIM-Signatur automatisierter E-Mails 800x800

NoSpamProxy enables DKIM signing of automated emails – update now!

25Reports, All Topics, News, NoSpamProxy Cloud, Product, Tech & Support, Updates

DMARC reports are a key tool for checking whether a domain’s SPF, DKIM, and DMARC configuration is effective and whether all legitimate senders are being authenticated correctly. Deviations – especially inconsistencies or a lack of alignment between SPF and DKIM – indicate problems in the email infrastructure. A practical example shows why a detailed DMARC analysis is essential for detecting and permanently resolving such problems.

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13.02.2026/by Stefan Sturm
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React vulnerability: NoSpamProxy is not affected

All Topics, News, NoSpamProxy Cloud, NoSpamProxy Encryption, Tech & Support

Experts are warning of a critical security vulnerability in React Server Components (RSC), which are part of the popular JavaScript framework React. This vulnerability allows attackers to remotely execute their own code on vulnerable servers. There is no danger for NoSpamProxy customers.

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12.12.2025/by Stefan Feist
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AS4: Updating the root and intermediate certificates of the SmartMetering PKI

All Topics, News, NoSpamProxy Cloud, NoSpamProxy Encryption, Tech & Support

The German Federal Office for Information Security (BSI) points out that the root and intermediate certificates of the SmartMetering PKI must be updated manually and regularly. Find out here how you, as a NoSpamProxy customer, can perform this update.

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11.12.2025/by Stefan Feist
NoSpamProxy-und-Dropsuite-schließen-strategische-Partnerschaft-Preview

NoSpamProxy & Dropsuite Introduce Bundle on ALSO Cloud Marketplace

All Topics, News, Product

We are excited to announce a new milestone in our mission to deliver secure, seamless, and future-proof email protection and data resilience. In April 2025, NoSpamProxy and Dropsuite entered into a strategic technology partnership, bringing together powerful email security with flexible, scalable backup and archiving. Today, we are proud to take the next major step: the launch of a joint service bundle, now available across Europe through our trusted distribution partner ALSO and conveniently bookable via the ACMP platform.

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28.11.2025/by Stefan Sturm
NoSpamProxy schützt E-Mail-Kommunikation bei der Medical School Hamburg 800x800

NoSpamProxy protects email communication at Medical School Hamburg

All Topics, News, NoSpamProxy Encryption, NoSpamProxy Protection

The university network benefits from reliable protection against spam, malware, phishing, and other threats, as well as convenient email encryption. Automatic certificate management for DFN/HARICA greatly reduces IT costs.

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20.11.2025/by Stefan Sturm

New features in 25Reports: more control, more security, more transparency

25Reports, All Topics, News, NoSpamProxy Cloud, Product, Tech & Support, Updates

Email security requirements are increasing and becoming increasingly complex. Companies not only have to implement DMARC, but also ensure that their configuration is correct and secure at all times. This is exactly where 25Reports comes in, and with the latest update, the platform is now even more powerful: alerts, access management, and reseller settings bring significant improvements for IT teams and resellers.

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17.11.2025/by Stefan Sturm

NoSpamProxy offers automated certificate management for DFN and HARICA

All Topics, News, Product

The new integration significantly reduces the administrative effort required for email encryption and offers seamless integration of HARICA certificates into the existing infrastructure of universities and research institutions.

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29.09.2025/by Stefan Feist
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Latest News

  • ZIP-Bomben: erst klein, dann gemein 1200x627
    ZIP bombs: big trouble in a small package13.04.2026 - 10:00
  • NoSpamProxy: The Right Choice for Enterprise Environments31.03.2026 - 10:00
  • Server und Cloud Unterschiede und Wechsel Tipps 800x800
    NoSpamProxy Server and NoSpamProxy Cloud: Differences and Tips for Switching16.03.2026 - 11:00
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