Proxmox Server Solutions GmbH today has released Proxmox Mail Gateway 6.0, the latest major version of its open-source email security solution. Proxmox Mail Gateway is a complete operating system based on Debian Buster and functions as an anti-spam and anti-virus filtering solution. It is deployed between the firewall and the internal mail server working like a full featured mail proxy and protecting organizations against spam, viruses, trojans, and phishing emails.

Proxmox Mail Gateway 6.0 is based on the latest stable release of Debian 10.0 (Buster) with a 5.0.21 kernel and includes the latest security fixes. Users can upgrade to version 6.0 either with a clean install or with an in-place upgrade. The developers provide a step-by-step upgrade path simplifying the latter. The new version 6.0 comes with improved support for ZFS on UEFI and on NVMe devices in the ISO installer, for example you can boot a ZFS mirror on NVMe SSDs.

Further improvements in Proxmox Mail Gateway 6.0 include:

Updated Spam Assassin rules.

The Mail filter now logs the rule name.

The system logs get displayed faster in the GUI because they now use the ‘mini-journalreader’ instead of ‘journalctl’.

ClamAV 0.101.4 containing a fix for https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=934359

PostgreSQL 11: new major version backing the rule system.

OpenSSL 1.1.1c with support for TLS 1.3.

Bugfixes and improvements.

The release notes are available at https://pmg.proxmox.com/wiki/index.php/Release_History.

Availability
Proxmox Mail Gateway is released under the GNU Affero GPL, v3. It is available as a bare-metal ISO install with an installation wizard that automatically installs and configures all necessary components on the host eliminating manual installation configuration. The ISO install contains the full feature-set and can be downloaded at https://www.proxmox.com/en/downloads.

Upgrade from Proxmox Mail Gateway 5.x to 6.0: A detailed step-by-step upgrade documentation is described at https://pmg.proxmox.com/wiki/index.php/Upgrade_from_5.x_to_6.0.

Technical enterprise support is available from Proxmox Server Solutions. Subscription prices start at EUR 99 per host and year for unlimited users and provides access to the enterprise package repository with regular updates via the web interface and to support from the Proxmox team.