The validity period of publicly trusted TLS certificates will be gradually reduced over the coming years. For administrators, this means a significantly greater workload in terms of certificate management, unless this process is automated. This article explains the background of the change, the specific timeline, and the planned approach for NoSpamProxy.
Summer is here, out-of-office replies are enabled, and besides those looking forward to vacation, there’s one group that’s especially happy: cybercriminals. While half the workforce is at the pool, the other half is working from home or covering for colleagues, and it’s precisely this state of stress, distraction, and vacation planning that provides the perfect breeding ground for phishing emails to thrive.
Due to an unusually high volume of support tickets, we are currently experiencing delays in our responses.
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.
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.
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.
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