To install , copy and paste the appropriate command in to your terminal.
cpanm
cpanm MPELZER/qpsmtpd/IDN-1.1b.zip
CPAN shell
perl -MCPAN -e shell install MPELZER/qpsmtpd/IDN-1.1b.zip
For more information on module installation, please visit the detailed CPAN module installation guide.