NoSpamProxy Server 16.0 (June 10, 2026)

NOTE:

  • All NoSpamProxy versions < 15.1.0.1048 are discontinued with the NoSpamProxy Server 16.0 version.

  • The certificate provider SSL Plus has been discontinued with the NoSpamProxy Server 16.0 version.

  • The TCP proxy in its old form, which can be activated via the configuration file, has been discontinued with version NoSpamProxy Server 16.0.

  • All versions of Microsoft SQL Express < Microsoft SQL Express 2025 are no longer supported with immediate effect.

WARNING:

  • 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. 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 16.0.0.4284

  • Management services 16.0

  • Identity Service 1.2.107

  • Message Tracking Transport service 1.0.22

  • Gateway Role 16.0.0.3771

  • Web  Portal 16.0.0.3771

  • Message Tracking Service 2.0.46

  • Intranet Role 16.0.0.3771

  • WebApp Hosting Service 1.4.1

  • WebApp 1.2.4111.0

  • PowerShell 16.0.0.3771

  • NoSpamProxy Command Center 16.0.0.3771

  • External Process Manager 1.0.781

Changes

26960 Improve reputation filter: Add slider for DMARC policy "none".

33363 Obsolete Disclaimer for the subject flag "Force password notification of the sender".

44131 OpenID can use Group Claims for the assignment of authorisations.

44794 Set "X-NoSpamProxy-Office365Identification" header for emails generated by NoSpamProxy.

47277 Show all TLS certificates with private key when selecting TLS client certificates.

47352 Improve Intranet Role "Start/Stop/Restart".

47575 Version 2025 with SQL Server Express required.

47841 Remove TLS Best Practice from NoSpamProxy.

48001 Request for a large number of certificates.

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

50137 The content filter now recognises significantly more MIME types.

Changed or new templates

  • ApplySymmetricEncryptionPasswordNotice.cshtml

  • AutomaticUserImportReport.cshtml

  • DatabaseFillGrade.cshtml

  • DeliveryNotificationReport.cshtml

  • RetrospectiveThreatClassificationWarning.cshtml

Fixed bugs

20897 Incorrect error message when performing the action "Protect attachments with a password".

27418 Flow Guard does not block the user after the daily limit has been reached.

41444 Users are blocked by Flow Guard, but the notification is missing.

43182 Content filtering in the Web Portal can be bypassed.

44874 Email is not S/MIME-signed if the partner has a PGP key and the system should not encrypt.

45770 Large file status "Waiting for approval", but the file has already been removed.

47504 The "Set-NspReceiveConnector" cmdlet does not add a second gateway.

47511 No padding is displayed in message tracking for S/MIME signature and validation with ECDSA certificate and PCKS1 padding.

47722 Disclaimer takes a very long time for some email bodies in plain text.

47735 The synchronisation of certificates with the Intranet Role is slow.

47766 The shared secret of the Web Portal may be damaged after upgrading to version 15.7.

47769 Decryption fails if the name of the certificate issuer contains an unassigned OID.

47828 The MIME type is incorrect after approving an attachment.

47832 The Intranet Role is not started if the Management Service is not running.

47944 Web App Message Track: Missing notification via text message.

48122 Logging of errors in the event of failed processing of URL accesses.

48123 CxO Fraud Detection cannot be set in PowerShell cmdlets.

48300 The process for resending the original email is cancelled if there are multiple recipients.

48304 Problems uploading JPEG files under iOS.

48455 Modification of the wording for the configuration "No policy" in the reputation filter rule.

48491 Email hint for locked file is missing if another file has been removed.

48904 Partner settings are not replicated if the name of the content filter set has changed.

49082 Signature is not recognised by NoSpamProxy.

49092 Remove empty artefact of the automatic user import replication.

49096 Unable to connect to the Gateway Role via PowerShell.

49104 Disclaimer: Images in the template are corrupted after updating the template.

49133 NCC: Page 2 of the "Corporate users" view does not work.

49569 The cryptographic key configurations differ between the Intranet Role and the Gateway Role.

49690 Failed to set up the Outlook add-in. The hash value is not correct.

49703 The Outlook Add-In cannot be started after installation.

49841 Automatic user import: The import cannot be modified.

49990 The operation to report the newly blocked users failed: Microsoft.Data.SqlClient.SqlException.

50070 Error processing message tracks.

50434 An AS/2 message could not be sent.

50435 PGP does not seem to work in version 16 - MDC is missing.

50504 EC/S/MIME decryption is not working.

Relevant for Managed Service Providers

40726 A PGP key could not be upgraded as a domain key for a tenant.

47327 The tenant search for umlauts does not work.

47826 Incorrect output of the cmdlet "Get-NspuserRoleAssignment".