Apparently, the IP addresses of many systems that Microsoft uses to send emails from M365 are currently on a real-time blocklist. NoSpamProxy initially rejects the processing of emails in these cases. Read this blog article to find out what you can do now.
The switch to the new managed MPKI service from SwissSign has been completed. In this blog article, you will learn what you need to do to ensure that SwissSign is still correctly integrated as a certificate provider.
NoSpamProxy continues to stand for advanced spam protection and email security in the new version. Version 14.1 marks an exciting milestone in our constant effort to make your communication more and more secure.
Currently, problems are occurring in connection with the Core Antispam Engine, which are already being worked on intensively by an external manufacturer. Here you will find our current recommendations for action.
We are currently experiencing an increased number of false positive reports in NoSpamProxy’s Malware Scan feature. Find our recommendations for action here.
As before with the Cyren engine, analyses of the Core Antispam Engine as well as 32Guards now and then lead to false positives and false negatives. We provide recommendations for action.
The new NoSpamProxy version 14.0.5 is available now. This version is no longer dependent on Cyren components. The new “Core Antispam Engine” replaces the previous filters “Cyren AntiSpam” and “Cyren IP Reputation”. Furthermore, in the “Malware Scanner Action” we have replaced the “Cyren AntiVirus Service” with the “Integrated Malware Scanner”.
You want to be optimally prepared for the update to NoSpamProxy 14? Sören Beiler explains all important steps in the video.
NoSpamProxy
Categories
Latest News
ZIP bombs: big trouble in a small package13.04.2026 - 10:00
NoSpamProxy: The Right Choice for Enterprise Environments31.03.2026 - 10:00


