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Proxmox Mail Gateway Changelog

What's new in Proxmox Mail Gateway 6.1

Nov 27, 2019
  • We have updated the Mail Gateway to Debian 10.2 (Buster) and a 5.3 kernel with ZFS included. The new version 6.1 brings support for DomainKeys Identified Mail signatures (DKIM), a new attachement quarantine, adjustable SpamAssassin scores via GUI, and improved handling of Configuration and Rule changes in a cluster. As an experimental feature, the support for “Before Queue” filtering can be enabled.

New in Proxmox Mail Gateway 5.2 (Mar 28, 2019)

  • The new command `pmg-system-report` provides an overview of the key characteristics of the setup and performance in Proxmox Mail Gateway, and improves the initial diagnosis for the Enterprise support.
  • With the .eml download from the quarantine interface (non-mobile) users can download the complete source of a quarantined message in .eml format for further analysis.
  • Improved handling of Blacklist/Whitelist in the Quarantine interface: a ‘multiselect’ option for removing multiple entries at once has been added.
  • Added support for custom checks: This functionality enables users to integrate their own custom check logic by providing a defined interface which can be enabled optionally, and runs a custom check before the email gets handed to the virus scanner and the rule system.
  • Proxmox Mail Gateway cluster now works with IPv6.
  • proxmox-spamassassin: Update the shipped rule sets.

New in Proxmox Mail Gateway 5.1 (Oct 9, 2018)

  • The new Transport Layer Security (TLS) policy provides certificate-based authentication and encrypted sessions. Users can now set a different TLS policy per destination domain, in case they need to prevent e-mail delivery without encryption, or to work around a broken STARTTLS ESMTP implementation. Configuration of the TLS policy can be done via GUI. TLS is also possible on internal SMTP port/traffic.
  • The updated user management now allows a new help desk role enabling help desk staff to access the quarantine.
  • Proxmox Mail Gateway 5.1 supports SMTPUTF8. This will fix the problem with some non delivered Google mails.
  • Smarthost ports: Editing and showing smarthost port is possible.
  • On the web-based user interface, the Proxmox developers improved the “Spam Quarantine” section adding keyboard shortcuts (for ‘Whitelist’, ‘Blacklist’, ‘Deliver’, and ‘Delete’), allowing contextual menus with right click, and enabling multiselection of emails.
  • Graphs and reports on the GUI have been optimized in Proxmox Mail Gateway 5.1.

New in Proxmox Mail Gateway 5.0 (Jan 25, 2018)

  • The Mail Gateway is a complete operating system based on Debian Stretch 9.3 with a 4.13.13 kernel, and has a new RESTful API, includes support for all ZFS raid levels, comes with LDAP, IPv4 and IPv6 support, and with a new interface framework based on Sencha ExtJS. For businesses Proxmox offers a new subscription-based support model with access to a stable enterprise repository.
  • New Proxmox Mail Gateway is Open-Source (AGPL,v3):
  • With the new Mail Gateway version 5.0 the company Proxmox has changed the license of it’s email security solution and it is now completely open-source, licensed under the GNU Affero GPL, v3. The anti-spam and anti-virus filtering solution includes the full feature-set like high performance and multi-threaded anti-virus engines, countless spam filtering methods, a message tracking center, a unique object-oriented rule system, user management and LDAP, HA clustering functionality (master/slave synchronization via SSH tunnel), an interface for end-user spam quarantine, and many more features.
  • With the license change to the free, copy-left open-source license AGPL, the Proxmox Mail Gateway now offers the same open-source development model and ecosystem like the company’s well known Proxmox VE, an open-source platform for enterprise virtualization: The source code of the Mail Gateway is available in the public GIT, issues can be reported in the bug tracker, the channel to discuss and share knowledge is the community forum.
  • The change in licensing also comes with a new support model. Instead of the former annual licensing model which included technical support, the company Proxmox now offers a subscription-based support model. A commercial subscription – recommended for production use – provides access to the stable enterprise package repository and to technical email support. Various subscription levels ranging from community to premium are available starting at EUR 99 for an annual community subscription.
  • New Framework for web-based management Interface:
  • With Proxmox Mail Gateway 5.0 the web-based management interface has been completely re-worked and is now based on the Sencha ExtJS framework. With the integrated, central web interface users can access and control all configuration and management tasks such as incoming and outgoing mail traffic, the object-oriented rule system, the message tracking center including all logs and reports, the end-user quarantine web interface, user management, backup/restore, and high availability clustering. Dashboards and statistics provide a quick overview for the IT staff easing their control tasks. If desired advanced tasks can be executed on the command line too.
  • Integrated Reference Documentation:
  • Proxmox Mail Gateway brings a new documentation framework integrated into the GUI which provides a global help function. Users can access and download the technical documentation via the central help-button (available in various formats like html, pdf and epub). A main asset of the new documentation is that it’s always version specific to the current user’s software version. The new reference documentation is created from man pages which are auto-generated based on the code. The help content itself is written by the developers via comments in the code and is generated using asciiDoc. To participate in the documentation project users can send a patch to the project and propose new content.
  • Other Notable Changes in Proxmox Mail Gateway 5.0:
  • Other new features in Proxmox Mail Gateway 5.0 include support for all ZFS raid levels in the ISO installer, LDAP, IPv4 and IPv6 support, ClamAV with Google Safe Browsing database, and one click updates via GUI.

New in Proxmox Mail Gateway 4.0 (Jan 21, 2015)

  • Proxmox Server Solutions GmbH has released version 4.0 of its antispam and antivirus solution Proxmox Mail Gateway. All packages have been updated and the new version is now based on Debian Wheezy 7.8. The product, available on the market since ten years, continues its focus on stability and performance. The release is generally available for download on January 20, 2015.
  • Proxmox Mail Gateway is an email security system protecting email servers from spam, viruses, trojans and phishing emails and is managed through an easy, web-based interface. In the integrated Proxmox Message Tracking Center users can get an overview of all email logs. The Mail Gateway can run on a physical system (bare-metal) or as a virtual appliance. For this, the customized Linux kernel already contains all the necessary drivers for qemu/KVM (virtio), VMware tools or Hyper-V integration services.
  • Proxmox Mail Gateway integrates the two high performance and multithreaded antivirus engines ClamAV and Cyren's Zero-Hour Virus Outbreak Protection. This dual approach combines traditional signature-based scanning with the cloud-based immediate scanning capabilities from Cyren and is able to analyze billions of emails in real-time, protecting the network against new spam and malware outbreaks the moment they emerge. The security solution from Cyren is available in Proxmox Mail Gateway since version 3.0 and for an unlimited number of users in all license levels. For maximum virus protection, Avira can be licensed as a third scanner option.