NoSpamProxy Server 16.1.0.4765 (July 21, 2026)

NOTE:

  • All versions of NoSpamProxy prior to 15.1.0.1048 have been discontinued since the release of NoSpamProxy Server 16.0.

  • Versions of Microsoft SQL Express older than 2025 are no longer supported.

  • Announcement: All versions of Microsoft SQL Server prior to Microsoft SQL Server 2019 will no longer be supported from NoSpamProxy version 16.2 onwards.

  • Announcement: All versions of Microsoft Windows Server prior to Microsoft Windows Server 2019 will be discontinued on December 31, 2026.

  • Announcement: NoSpamProxy Server has supported OpenTelemetry since version 16. Windows performance counters will be completely replaced by OpenTelemetry in one of the upcoming versions. The exact time will be announced in good time.

 

WARNING:

  • Ein Update auf die Version 16.1 ist nur von Version 15.7 möglich. Updating from another version may cause problems.

  • An update to version 16.0 is only possible from version 15.7. Updating from another version may cause problems.

  • An update to version 15.7 is only possible from version 15.1 and higher. Updating from another version may cause problems.

  • An update to version 15.2 or higher is only possible from version 15.1. Updating from another version may cause problems.

See Software archive.

WARNING: Please note that the port allocation has changed with version 15.2. Port 6062 has been added in version 15.2 and is now required. Information on the changes can be found under Port allocation.

This version contains the following components:

  • NoSpamProxy 16.1.0.4765

  • Management services 16.0

  • Identity Service 1.2.119

  • Gateway Role 16.1.0.2000

  • Web  Portal 16.1.0.2000

  • Message Tracking Service 2.0.52

  • Intranet Role 16.1.0.2000

  • WebApp Hosting Service 1.4.1

  • WebApp 1.2.4324.0

  • PowerShell 16.1.0.2000

  • Message Tracking Transport service 1.0.22

  • External Process Manager 1.0.990

  • NoSpamProxy Command Center 16.1.0.2000

Changes

48240 Remove file permissions.

48419 The approval link in an environment in provider mode contains the tenant name instead of the primary domain.

48513 Remove TLS-PIN support.

48538 Switch from NTLM authentication to Basic authentication. To ensure compatibility with current and future versions of Windows, authentication between various NoSpamProxy components has been switched from NTLM to Basic Authentication. The change particularly affects the Identity Service, the Web App, the NoSpamProxy Command Centre, PowerShell and communication between various NoSpamProxy components.

WARNING: Existing scripts that use NTLM will no longer work with NoSpamProxy Server 16.1 and must be modified before updating to version 16.1. The scripts in our GitHub repository have already been updated and now support Basic Authentication.

Changed or new templates

  • EmailHintsPlainText.cshtml

This template has been customised.

NOTE: If you have made any changes to this template, you must update it manually; otherwise, the default template will be used again. See How to customise NoSpamProxy notifications.

Fixed bugs

38801 Flow Guard: NDRs are not completely excluded from Flow Guard.

42567 Encryption Only: Issues with the outbound SMTP connector following the reset of the "EnforceTcpProxyForNonProtectionTenants" setting.

46986 Email routing in the inbound send connector: Using "localhost" as the smarthost hostname results in a delivery error.

48147 ICAP: "localhost" is not resolved to an IP address.

48455 Adjustment to the wording for the "none" configuration in the reputation filter rule.

48859 Connection to Mentana service could not be established. The Mentana-Claimsoft proxy is not available.

49481 A Base64-encoded ‘From’ header containing a Unicode space is not detected by the CxO Fraud detection system.

49501: The report on misclassification is not working.

49986 The licence check is carried out once a day, even if errors occur.

50754 The data provided is marked with the ‘Universal’ class value ‘16’, but should have the ‘Universal’ class value ‘2’.

51181 Missing line breaks in plain-text email notifications.