User Guide

34 Kaspersky
®
SMTP-Gateway 5.5 for Linux/Unix
Figure 6. Message processing
4.2.2. General message processing
algorithm
In this section, we shall examine how the application processes email messages.
When the server receives an email message:
1. The program determines the group of recipients this message belongs to.
2. If the message has multiple recipients belonging to different groups,
before further anti-virus scan is performed, the application creates several
virtual copies of this message to match the number of groups and applies
respective group rules to each of such copies.