User Guide

Using Kaspersky SMTP-Gateway application 31
depending on whether this group contains either the sender’s or the recipient’s
address from commands MAIL FROM and RCPT TO.
The administrator can specify individual rules for processing each mail messages
depending on the recipients/senders group. Therefore it is particularly important
that the addresses are associated with the correct groups.
The application searches through the list of addresses for a specific address. If it
finds a matching combination of the sender/recipient addresses, the rules
defined for this group will be applied to the email message.
The anti-virus functionality of Kaspersky SMTP-Gateway depends on
the configuration file settings. You can make configuration changes to
the file either locally or remotely (using the Webmin remote administra-
tion module).
The configuration file contains the description of [smtpgw.policy] section that
implicitly defines the policy group that determines the default email messages
processing rules.
All settings specified in this section and the section itself are mandatory.
The policy group does not contain the names of senders and recipients. Rules
defined in the policy, are applied to all messages, except those that belong to
other groups explicitly described as sections [smtpgw.group:group_name].
All parameters in sections [smtpgw.group:group_name] are optional. If a
parameter value in such section is not specified, it will be taken from section
[smtpgw.policy]
If a configuration file included into the application installation package is used,
then the mail messages will be processed as per the following rules (defined by
the policy group).
• Scan all messages.
• Deliver only clean messages to the recipients.
• Messages that could not be disinfected, suspicious, corrupted, pro-
tected messages that caused errors, must be deleted
• Notify recipients and the group administrator about infected, disin-
fected, suspicious, corrupted or protected messages that caused er-
rors.
You can change the parameters of the policy group or create new groups. If you
would like to process email messages belonging to different groups of
recipients/senders using different rules, you will have to create several distinct
groups.