To install Benno MailArchiv, you simply need to add another package source to your Linux system. This is done by appending the line containing the repository configuration to the file /etc/apt/sources.list.

cat >> /etc/apt/sources.list <

Debian-based systems use GNU Privacy Guard (GPG) to verify the authenticity of package sources. The following commands add the Benno MailArchiv package source key to your system:

wget -O - http://www.benno-mailarchiv.de/download/debian/benno.asc | apt-key add -