Install graphdefang by entering the following commands in the terminal:
sudo apt update sudo apt install graphdefang
Description:
grapher for MIMEDefang spam and virus logs
GraphDefang is a configurable utility that parses arbitrary syslog entries and creates a set of configurable charts (PNG files) with the data. These files can be written to disk or displayed by a web server through a CGI script.
Homepage: http://www.mimedefang.org/
Version: 2.83-1
Section: universe/mail