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.
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.
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.
The German Federal Office for Information Security (BSI) points out that the root and intermediate certificates of the SmartMetering PKI must be updated manually and regularly. Find out here how you, as a NoSpamProxy customer, can perform this update.
Latest News
No support on Thursday, June 4, 202601.06.2026 - 15:32- New MIME Types in NoSpamProxy Cloud: What You Need to Know21.05.2026 - 17:12
Getting DKIM Right: The Key to Secure Email Communication18.05.2026 - 10:00