A one-time action is required for the Microsoft user import in NoSpamProxy Cloud: As part of a technical transition, new app registrations will be handled through Microsoft Entra ID. To ensure that the user import continues to function reliably in the future and that changes to users and groups are automatically applied, affected clients must re-consent to the necessary permissions. Please complete this update by September 1, 2026, at the latest.
Your customers are under attack every day: with spoofed sender domains, authentic-looking phishing attempts, malicious attachments and AI-generated text that even experienced employees can no longer distinguish from genuine corporate communications. Email is and remains the preferred entry point for cybercriminals. The question isn’t whether your customer will be affected, but when. You are responsible for the security and satisfaction of your customers and for the quality of your recommendations. That is exactly why it’s worth taking a closer look at NoSpamProxy.
CEO fraud, phishing, ransomware via infected attachments: Email remains the preferred entry point for attackers. In enterprise environments, the risk is magnified: more mailboxes, more locations, more entry points. And the attacks are becoming more sophisticated. AI-generated text, spoofed sender domains, context-specific attempts at deception – what used to be recognizable by poor spelling is now almost indistinguishable from a genuine sender. Enterprise organizations with hundreds or thousands of mailboxes, complex IT landscapes, and strict compliance requirements have unique needs. This is where NoSpamProxy comes in.
NoSpamProxy Server has proven itself over the years as a reliable on-premises solution for email security. Many companies have been using the solution for a long time—and for good reason: control over their own infrastructure, the ability to customize configurations, and independence from external services are compelling arguments for on-premises operation. But the IT landscape is changing—and cloud solutions are increasingly coming to the forefront. NoSpamProxy Cloud offers a compelling alternative to on-premises operation with NoSpamProxy Server. Both versions are developed on a shared codebase. Those who switch will find a familiar environment on the other side. In this article, we highlight the key differences between NoSpamProxy Server and NoSpamProxy Cloud—and explain how to successfully transition to the cloud step by step.
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.
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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