G'day netperl,

Welcome to the monastery.

Apple includes its own customised version of Perl with Mac OS X for its own use. It may change this without notice (as part of a Mac OS X update) which can break your Perl applications. If you change it, then you can break how Mac OS X operates. It's best to completely leave it alone and install a version of Perl for your own use: perlbrew is a good option for this (see App::perlbrew for installation and perlbrew for usage).

Email::MIME is a CPAN module which you'll need to install (using your own Perl version). There's several ways to do this; I use the cpan utility like this:

$ cpan

cpan[1]> install Email::MIME
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