System requirements

The following hardware requirements must be met before the installation process in order to run ESET Mail Security properly:

250MB of hard-disk space

256MB of RAM

glibc 2.3.6 or later

Linux OS kernel versions 2.6.x - 5.4.0

The following operating systems are officially supported:

Operating system

x86

x64

Ubuntu 12.04 LTS

Yes

Yes

Ubuntu 14.04 LTS

Yes

No

Ubuntu 18.04 LTS

No

Yes

Red Hat Enterprise Linux 6

Yes

Yes

Red Hat Enterprise Linux 7

No

Yes

Centos 7

No

Yes

FreeBSD 9

Yes

No

Sles 12

No

Yes

ESET Mail Security should also work on the most recent and frequently used open-source Linux distributions if:

the hardware requirements criteria above are met,

and software dependencies are not missing in the Linux distribution used.

Remote management via ESET Remote Administrator:

ESET Remote Administrator 5.x

ESET Mail Security  3.0.x
ESET Mail Security  4.0.x
ESET Mail Security  4.5.x (it is not possible to set anti-spam parameters using ERA 5.x)

ESET Remote Administrator 6.x

ESET Mail Security 4.0.x (it is not possible to set anti-spam parameters using ERA 6.x)
ESET Mail Security 4.5.x (recommended, fully functional)