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.
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.
secIT by heise medien is THE congress trade fair for security professionals – and we will be there! From March 18 to 19, 2026, over 100 companies will present their tools, services, and expertise at the Hannover Congress Centrum (HCC). You can look forward to an extensive program of presentations on four stages with over 50 exciting sessions, as well as workshops and deep dive sessions that will give you practical insights into the latest IT security solutions. You will find us in the Eilenriedehalle, booth number E38.
With its official market launch, 25Reports is bringing a new generation of DMARC analysis into productive use. Following a successful early access phase, which began on September 1, 2025, the new features are now available to all users.
In Germany, between 30,000 and 40,000 companies are affected by the requirements of the NIS 2 Directive. Around 80% of them are unaware of this, even though failure to comply can result in severe penalties. In this blog article, you can find out what NIS2 is, what changes the EU Commission has proposed for 2026, and how you can prepare your company for the directive.
Traditional email security solutions check URLs when a message is received. If the linked page appears normal, the email is allowed to reach the inbox. But what if security systems see something different than the users who later click on the link? Cloaking techniques make this possible—and thus call into question a fundamental principle of URL filtering.
An accidentally deleted SPF entry, an unsuspecting email administrator, and weeks of undetected delivery problems—what sounds like a worst-case scenario actually happened. The case shows how 25Reports not only makes problems visible, but also enables them to be quickly resolved.
URL rewriting promises protection against phishing attacks by rewriting URLs in incoming emails and rechecking them every time they are clicked. Link wrapping attacks specifically exploit URL rewriting in emails. Learn how these attacks work and how you can effectively protect yourself against them.
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End of TLS Client Authentication Certificates
All Topics, News, NoSpamProxy Cloud, NoSpamProxy Encryption, Tech & SupportEffective 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.
NoSpamProxy enables DKIM signing of automated emails – update now!
25Reports, All Topics, News, NoSpamProxy Cloud, Product, Tech & Support, UpdatesDMARC 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.
secIT 2026 – Secure your free tickets now!
All TopicssecIT by heise medien is THE congress trade fair for security professionals – and we will be there! From March 18 to 19, 2026, over 100 companies will present their tools, services, and expertise at the Hannover Congress Centrum (HCC). You can look forward to an extensive program of presentations on four stages with over 50 exciting sessions, as well as workshops and deep dive sessions that will give you practical insights into the latest IT security solutions. You will find us in the Eilenriedehalle, booth number E38.
25Reports launches: A new standard for DMARC analysis
All TopicsWith its official market launch, 25Reports is bringing a new generation of DMARC analysis into productive use. Following a successful early access phase, which began on September 1, 2025, the new features are now available to all users.
NIS2 – What the directive means for you (Update 2026)
All TopicsIn Germany, between 30,000 and 40,000 companies are affected by the requirements of the NIS 2 Directive. Around 80% of them are unaware of this, even though failure to comply can result in severe penalties. In this blog article, you can find out what NIS2 is, what changes the EU Commission has proposed for 2026, and how you can prepare your company for the directive.
How cloaking disguises phishing attacks
32Guards, All Topics, NoSpamProxy Cloud, NoSpamProxy Protection, ProductTraditional email security solutions check URLs when a message is received. If the linked page appears normal, the email is allowed to reach the inbox. But what if security systems see something different than the users who later click on the link? Cloaking techniques make this possible—and thus call into question a fundamental principle of URL filtering.
When the service provider deletes the SPF record: Why DNS alerts are essential
32Guards, NoSpamProxy Cloud, NoSpamProxy Protection, ProductAn accidentally deleted SPF entry, an unsuspecting email administrator, and weeks of undetected delivery problems—what sounds like a worst-case scenario actually happened. The case shows how 25Reports not only makes problems visible, but also enables them to be quickly resolved.
Link wrapping as an attack vector
32Guards, All Topics, NoSpamProxy Cloud, NoSpamProxy Protection, ProductURL rewriting promises protection against phishing attacks by rewriting URLs in incoming emails and rechecking them every time they are clicked. Link wrapping attacks specifically exploit URL rewriting in emails. Learn how these attacks work and how you can effectively protect yourself against them.