I want to use MIME::Lite...

Why would you want to do that? WAIT!:

MIME::Lite is not recommended by its current maintainer. There are a number of alternatives, like Email::MIME or MIME::Entity and Email::Sender, which you should probably use instead. MIME::Lite continues to accrue weird bug reports, and it is not receiving a large amount of refactoring due to the availability of better alternatives. Please consider using something else.

...and...

   CPAN RT
New 	    37
Open 	    11
Stalled      1