March 2025

New features

NoSpamProxy Cloud Encryption available as a standalone module

NoSpamProxy Encryption is now available as an individual module in NoSpamProxy Cloud via a corresponding licence. This offers maximum flexibility for customers who are looking for a secure and proven encryption solution but do not require malware and spam protection.

ARC signing

With the March update, ARC signing can be used in NoSpamProxy Cloud. Authenticated Received Chain (ARC) ensures the authenticity of emails and is closely linked to SPF, DKIM and DMARC. Each intermediate station that verifies an email with regard to SPF, DKIM and DMARC and adapts the header of the email accordingly also signs its own results with an ARC entry. If the email is sent to the next server via redirection or forwarding, this server must also verify all ARC information of the intermediate stations according to the RFC.

From now on, NoSpamProxy will perform ARC signing, whereby both a list of signatories curated by NoSpamProxy and ARC signatories added by the user can be used.

Archive connector

An archive connector can now be configured in NoSpamProxy Cloud. A journaling mailbox is available as an archive system.

Changes

URL Safeguard

IP addresses can now be configured in Allow and Block lists in URL Safeguard.

User import

The Office 365 user import has been modernised.

Fixed bugs

23800 Calendar invitations from files in winmail.dat format are removed after conversion to regular MIME parts.

36141 Outbound emails do not have a receive header.

41325 Internal receive header is not removed.

42348 Mime Detection PDF/A Metadata recognition ignores e-invoicing information.

42443 Zugferd downward compatibility to 2.0 is missing.

43500 XRechnung UBL syntax is not recognised.