3.1 System Requirements

3.1.1 Overview

The Secure Messaging Gateway Appliance is a complete software package for implementing the Secure Messaging Gateway system and is designed to replace an existing Secure Messaging Gateway server with a standalone Secure Messaging Gateway system running an SMTP scanner for any mail system. The Secure Messaging Gateway Appliance is designed for a virtual machine environment.

The Secure Messaging Gateway Appliance is designed to run the SMTP scanner for any email system in the market. The SMTP scanner and Secure Messaging Gateway Appliance are completely independent of, and can be implemented in, any system. The SMTP scanner acts as a proxy for the SMTP Gateway of the mail system.

The SMTP scanner and Secure Messaging Gateway appliance are meant to be placed in front of the current Gateway for the mail system. Incoming email sent to your domain will first go to the Secure Messaging Gateway appliance, which scans then sends clean email to the Gateway. Mail sent from your domain will pass through the normal system, but the SMTP Gateway will send the mail to the Secure Messaging Gateway appliance, which sends the email to the internet.

3.1.2 System Requirements

Micro Focus Secure Messaging Gateway is supplied as an OVA template and is supported by VMware. The following third-party host operating systems and hypervisors are supported to run SLES 15 GA guests:

  • VMware ESXI 6.0

  • VMware ESXI 6.1

The minimum requirements for the SMG appliance are:

  • 1 CPU

  • 8 GB RAM

  • 2 Hard Drives: 1 60 GB Hard Drive for the operating system

    • 60 GB hard drive for the operating system

    • 60 GB hard drive for SMG. This may need to be larger based on the number of users and mailboxes you are monitoring and the size of your quarantine.