To use the gnupg-secured mail gateway, you need to do the following:
Set up a gnupgp key directory with a pubring containing only the keys you care about and specify the following in your SiteConfig.pm
Set($RT::GPGKeyDir, "/path/to/keyring-directory"); @RT::MailPlugins = qw(Auth::MailFrom Auth::GnuPG Filter::TakeAction);
To install RT::SimpleGPGVerify, copy and paste the appropriate command in to your terminal.
cpanm
cpanm RT::SimpleGPGVerify
CPAN shell
perl -MCPAN -e shell install RT::SimpleGPGVerify
For more information on module installation, please visit the detailed CPAN module installation guide.