I'd like to recommend a module written by [id://gmpassos], Mail::SendEasy - it requires no dependencies, save for Archive::Zip, and then only if you need to compress. It sends MIME attachments. Very flexible and easy to get up and running..

It sounds to me like you would benefit from hiring a professional to get you started on that project -- that way you'd get it done correctly and quickly, and as you learn, you could begin maintaining or expanding the code yourself. Unfortunately Perlmonks is better a place for specific questions and discussions, as opposed to a place to post requests to write entire production apps for you - better jobs.perl.org for that :)