Proxmox Mail Gateway 6.0 available


VIENNA, Austria – August 27, 2019 – 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

  • 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
  • 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


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

Upgrade from Proxmox Mail Gateway 5.x to 6.0: A detailed step-by-step upgrade documentation is described at

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.

About Proxmox Mail Gateway
Proxmox Mail Gateway is the leading open-source email security solution protecting your mail server against all email threats the moment they emerge. Organizations of any size can easily implement and deploy the comprehensive anti-spam and anti-virus platform in only a few minutes. Deploying the full featured mail proxy between the firewall and an internal mail server allows to control all incoming and outgoing email traffic from the central web-based interface. Proxmox filters the whole email traffic at the gateway before it reaches the mail server protecting businesses against email attacks and other malicious threats. Proxmox Mail Gateway is open-source software, licensed under the GNU AGPL, v3. Enterprise support subscriptions are available from Proxmox.

About Proxmox Server Solutions GmbH
Proxmox is a provider of powerful yet easy-to-use open-source server software. Enterprises regardless of size, sector or industry use the stable, secure, scalable, and open Proxmox solutions to deploy efficient, agile and simplified IT infrastructures, minimize total cost of ownership, and avoid vendor lock-in. Proxmox also offers commercial support and training to ensure business continuity to its customers. Proxmox Server Solutions GmbH was established in 2005 and is headquartered in Vienna, Austria.

Contact: Daniela Häsler, Proxmox Server Solutions GmbH