We have released the Version 13.2.21111.1701 on May 6th, 2021. This Version is an upgrade release where the following Bugs are fixed and new features are added or changed.

Important Information

If you have previously installed a beta version 13.2, please upgrade to the official release version 13.2.20141.1435 or later for support reasons!

As of version 13.2.20083.1640, a script for enhancing the address searching is included. These may cause the setup not to respond for a some time during database update. The setup must not be aborted and must run until completed. Please schedule a longer upgrade period for this.

Version 13.2.21111.1701 (May 6th, 2021)

includes all changes and bug fixes from Fast Channel Versions 13.2.20199.1826 to 13.2.21111.1701

Please review Release Notes of Fast Channel Version for Changes and Bug Fixes

Version 13.2.20171.1151 (June 30th, 2020)

includes changes and bug fixes from Regular Channel Version 13.2.20141.1435


  • 24397: A replication artifact could not be deserialized
  • 24444: Message tracks could not be retrieved from the Intranet Role
  • 24514: Intranet Role database updates fails: Failed to execute an SQL command. Error: String or binary data would be truncated.
  • 23966: “Error: Invalid algorithm specified” when importing a certificate with rsaSignatureWithripemd160 signature algorithm
  • 24400: Office365 detection fails when an Office 365 accepted domain is used instead of an Guid
  • 24138: Update TLS Best Practices for Windows 2012R2
  • 24503: Sign and Encrypt action incorrectly uses SHA-512 although the certificate only supports SHA-256
  • 24468: Object reference not set to an instance of an object.
  • 24544: Stripping batv data can lead to failures to update message tracking data
  • 24496: Missing data for signature validation. SignedContent is empty and no data stream has been provided.
  • 24520: Attachments in nested EML attachments are not detected if the content type of the nested EML is not message/rfc822
  • 24530: Improve the Mail to many recipient with out- or inbound content filter configured
  • 24504: URL Safeguard details are incorrectly marked as deleted in Message Tracking which causes the cleanup to fail
  • 24547: A lot of inbound Duplicate mails, if it was a mail to 626 recipients

Version 13.2.20141.1435 (June 2nd, 2020)

includes changes and bug fixes from Fast Channel Version 13.1.20071.1529

New / Changed

  • Four new tests for the reputation filter focusing on the HEADER-FROM
  • One new test for the reputation filter that checks if the email was transmitted via a TLS-protected connection
  • DFN CA connector
  • URLs in emails can be disabled by the URL Safeguard
  • Greylisting is now a policy violation
  • BATV addresses are now included in the license count


  • E-Post-Brief connector is supported for the last time
  • Windows 2008 Server R2 is supported for the last time
  • SQL 2008 R2 is supported for the last time
  • SQL 2016 Express Edition is supported for the last time
  • SMTP proxy mode is supported for the last time


  • 22455: Search root in the LDAP User import should not be mandatory
  • 22889: The DKIM and DMARC implementation of NoSpamProxy does not support internationalized domains
  • 22952: Processing delivery attempty is too slow
  • 23222: Multiple attempts to scan an attachment using the Cyren sandbox failed
  • 23254: Restrict the DANE Validation to 20 sec
  • 22905: Replication breaks when the identity counter reaches 2 billion in the UrlVisits database
  • 23159: Import public certificate used for encryption instead of sign only certificate
  • 23178: Reputation filter does not cope well when the From: oder To: header is missing
  • 21654: Users are still counted and message “You exceeded your license …” is shown even if elapsed time is more than 10 days
  • 23877: Could not bind to The address is already in use. Perhaps another SMTP server is running on this endpoint
  • 23953: An attempt to put an email on hold failed
  • 23911: New installation of Intranet Role with existing database on remote SQL server fails
  • 24079: Processing Message Track replication artifacts on the Intranet Role is very slow
  • 23088: URL Safeguard: The specified website ID could not be processed
  • 23255: Sometimes there is a Warning in MMC if the MMC was inatalled remote on a client
  • 24144: Logging output for cleanup of Safeguard URLs during Message Tracking cleanup is incorrect
  • 22932: Heimdall filter name is “OutbreakDetection” in MMC
  • 23591: NSP cuts off header from domain
  • 23571: Update Cyren configuration settings in setup
  • 23565: CxO filter runs after content filtering
  • 23623: Mime-Version is not always created when converting an existing mail to mulitpart
  • 23499: Existing SMIME signature is not removed if the signature is not part of a multipart mimepart
  • 19676: Compilation errors for automatic reply templates are not shown anywhere
  • 23670: [production] Content disarm for an email on hold failed
  • 23684: Plain text body with iso-2022-jp encoding is handled as attachment with mime type application/octet-stream
  • 23636: Mime type for zip archive containing PDF document is detected as unprocessable PDF
  • 23689: Charset of email body is changed to UTF-8 if content filter upload hint is added
  • 20420: URL Safeguard: Protected link text is not set
  • 23400: The mime part of type Netatwork.NoSpamProxy.Net.Smtp.MultipartMimePart is not supported
  • 19285: Long lines in mime parts extracted from TNEF emails are not wrapped
  • 23532: URLSafeguard: Deactivated links with www prefix could not be reactivated
  • 23797: DNS Server settings could not be saved: A parameter was invalid
  • 20481: Files with very long names could not be uploaded to web portal
  • 23808: URL Safeguard rewrites 4 digit version numbers
  • 23736: Large files malware scan is not displayed in MMC if the email is sent via the Web Portal
  • 23809: URL Safeguard rewrites parts of filenames if the extension is a valid TLD
  • 23918: LDAPS doesn’t work with wildcard certificicates
  • 23629: Ascending “ordered by” brokes message tracking
  • 23928: Gateway Role crashes / ARSoft DNS lookup causes stackoverflow exception
  • 23967: CDR file not send if files over size limit should be uploaded to the web portal
  • 23638: Email is put on hold with “Error: A clone of the specified mimepart was not found.” if the content filter removes a file from an attached EML file
  • 23913: Base64 decoder doesn’t ignore extra padding characters if configured to ignore extra characters
  • 24076: Inbound Large Files links are also password protected
  • 24008: Message Tracking cleanup doesn’t finish in cleanup period
  • 23640: Spam URI Realtime Blocklist filter error: Object reference not set to an instance of an object
  • 24030: Disclaimer keyword replacement is slow for larger HTML bodies
  • 23888: URL Safeguard rewrite part of email addresses in attached eml file
  • 24134: Improve notification info
  • 24204: Legacy Excel 4.0 macros are not detected
  • 24191: Spelling errors in message details
  • 24245: CorporateMailOffice365TenantTests unit tests are failing because of an expired certificate

Always follow the instructions in the installation manual and the general upgrade instructions here in the Knowledge Base.

​Before upgrading make sure that the .NET Framework version 4.7.2 or higher (we reommend .NET Framework version 4.8) is installed and that the SQL Server version is 2008 R2 (we recommend 2017 or later). All supported versions can be found here.

Important note for upgrade version 13.0 and later versions

Do not install this beta version in productive environments!

As of Version 13.2.20083.1640, a script for enhancing the address searching is included. This may cause the setup not to respond for a some time during database update. 

The setup must not be aborted and must run until completed. Please schedule a longer upgrade period for this.

Upgrading from version 12.2 and earlier versions

Please install version 13.1.19330.1217 or higher before upgrading to version 13.2. You can download this version here.
Please also note all upgrade articles for older versions in our Knowledge Base under “Update Information”.

Upgrade NoSpamProxy

When upgrading from version 13.1 to version 13.2, all settings and user information are retained. Only the proxy settings and content adjustments of the template files (templates) must be saved as usual and reinstalled after the upgrade. This procedure is described under General update information.
For security reasons, please export existing DKIM keys from the console under “People and identities > DKIM Keys” BEFORE upgrading.

Additionally, please check the following points after the upgrade:

  • Content filter: As there have been changes to the file types (MIME Types), please check all content filters and their content filter entries
  • The reputation filter in the rule set has been extended in version 13.2 compared to version 13.1. This modification enables further, additional checks
    • Four additional checks on the HEADER-FROM
    • One additional check whether the transmission was secured with TLS
  • Starting with version 13.2, the incident to the Spam URI Realtime Blocklists is converted from an error to a warning
  • URL Safeguard: It is now possible to disable URLs
  • Cryptographic key provider: You can now also request certificates from the German National Research and Education Network (DFN)
  • Greylisting is now a policy violation
  • BATV addresses are now included in the license count
  • Calculation of the license values for the Encryption and Large Files modules has been changed. From now on inbound and outbound emails are considered. See License management in version 13 and higher.
  • Note: Discontinuation of the Office 365 client “Deutsche Azure Cloud”
    From version 13.2.20258.1435 a notification is displayed at the NoSpamProxy console start page that the client is no longer supported from version 14. All users who still have such a client active must not upgrade to version 14 until the migration on Microsoft side has been made. Further information is available here:

License type change

As of version 13.0 we have changed the integration of the license from license file to license key. This change is done automatically and no further action is required.
In case of problems, please refer to the Knowledge Base article How to install a new license.

Outlook Add-In

The upgrade of the gateway and the Web Portal necessarily requires an upgrade of the Outlook Add-In as well, otherwise communication with the Web Portal is no longer possible.