Proxmox, known for developing the Proxmox Virtual Environment distribution kit for deploying virtual server infrastructures, introduced the release of the Proxmox Mail Gateway 5.2 distributive. Proxmox Mail Gateway is presented as a turnkey solution for quickly creating a system for controlling email traffic and protecting the internal mail server.
An installation ISO image is available for free download. Distribution-specific components are under the AGPLv3 license. To install updates, you can use both a paid Enterprise repository and two free repositories that differ in the level of stabilization of updates. The system part of the distribution is based on a package based on Debian 9.8 (Stretch) and the Linux kernel 4.15. Proxmox Mail Gateway components can be installed on top of existing Debian 9 servers.
Proxmox Mail Gateway functions as a proxy server, acting as a gateway between the external network and an internal mail server based on MS Exchange, Lotus Domino or Postfix. It is possible to manage all incoming and outgoing mail flow. All correspondence logs are sorted out and available for analysis via a web interface. Both graphs are provided to assess the overall dynamics, as well as various reports and forms for obtaining information about specific letters and delivery status. Cluster configurations are supported for high availability (maintaining a synchronized backup server, data is synchronized via an SSH tunnel) or load balancing.