Version 16.1 of NoSpamProxy Server is now available. The new version includes numerous improvements in the areas of authentication, security, and stability. A key focus of this version is the replacement of NTLM-based authentication with Basic Authentication. In addition, the core components of NoSpamProxy have been further optimized.
Due to an unusually high volume of support tickets, we are currently experiencing delays in our responses.
Version 16 of NoSpamProxy Server is now available. The new version demonstrates that NoSpamProxy Server is the best choice for optimally securing your electronic communications. The changes in Version 16 affect both the software’s underlying architecture and specific security features and system requirements. This article provides a structured overview of all the key new features.
NoSpamProxy support will not be available on Thursday, June 4, 2026.
MIME type detection in NoSpamProxy Cloud has been significantly enhanced. This allows for more accurate classification of attachments. Find out what has changed and what you should be aware of now.
After installing cumulative Windows security updates starting in January 2026, some users may no longer be able to log in to the NoSpamProxy Web App. This is due to a new, mandatory Microsoft security feature and a firewall setting. We’ll show you how to resolve the issue.
The certification authority SwissSign is revoking a large number of S/MIME Silver certificates. Customers who use NoSpamProxy in conjunction with SwissSign Managed PKI (MPKI) may be affected. There is no security risk for emails or encrypted content. Nevertheless, affected customers should take immediate action.
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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