To install Mail::SpamAssassin::Plugin::GoogleSafeBrowsing, copy and paste the appropriate command in to your terminal.
cpanm
cpanm Mail::SpamAssassin::Plugin::GoogleSafeBrowsing
CPAN shell
perl -MCPAN -e shell
install Mail::SpamAssassin::Plugin::GoogleSafeBrowsing
For more information on module installation, please visit the detailed CPAN module installation guide.