Mailer should be compatible with most modern Windows and Linux operating systems. It has been tested most extensively on Windows Server 2012 and Ubuntu Linux 19.04.
In order to run, Mailer must have access to a MongoDB server. It stores sent emails, SMTP configurations, user accounts, email templates, session data, and some configuration options in the database. Our testing has been done with the community edition, version 4.0.x.
To install Mailer on Windows, run the mailer-install.exe installer. Once the installer finishes, Mailer will be installed on your system, but no services will be configured. To set up a Mailer system service, see the “service” command instructions.
To install Mailer on Linux, extract the mailer tar.gz file to the desired location. A common location for it would be the /opt directory. Once that has been done, see the “service” command instructions for information about running Mailer as a system service.