User Guide

8 Kaspersky
®
SMTP-Gateway 5.5 for Linux/Unix
• Support of the DNS Black List technology, an internal client for the DNS
service.
• Monitoring of application status (watсhdog process).
• Checking the syntax of the application configuration file and notification
templates.
1.2. Licensing policy
The licensing policy for Kaspersky SMTP-Gateway includes a system of product
use limitations based on the following criteria:
• Number of users protected by the application
• Email traffic processed daily (MB/day).
Each type of licensing is also limited by a certain period (typically one year or two
years after the date of purchase).
You can purchase a license limited by one of the above criteria (for example, by
the daily mail traffic volume).
The application has slightly different configuration parameters, depending on the
type of license you have purchased. Thus, if the license is issued for a certain
number of users, you will have to create a list of addresses (domains) that will
be protected by the application against viruses. The application will notify the
administrator when the traffic volume reaches critical values or the number of
protected accounts is exceeded and hence the license is about to expire.
1.3. Hardware and software
requirements
Minimum system requirements for normal operation of Kaspersky SMTP-
Gateway are as follows:
• Intel Pentium
®
processor (Pentium III or Pentium 4 recommended).
• At least 128 МB of available RAM.
• At least 100 MB of available space on your hard drive to install the
application.