This module is one of the many email modules likely to cause you heartache when you need it for anything useful. It doesn't properly handle non-ascii characters (or other special characters) in the address, nor does it deal with email address phrases, comments, or groups. It assumes that you can parse an email address by splitting on @ and having two parts.
These are potentially fixable problems, but worse, it ties itself to MIME::Lite, one of the buggiest popular email modules on the CPAN. You are better off using Email:: or Mail:: Address.