How to send flip ebook on mail?

Which one I can choose from so many types to output and email to others?

In Flip programs provides by FlipBuilder, there are many different output types for you to choose:
HTML, EXE, Zip, Mac App, Mobile version and Burn to CD.

HTML allows you to upload to a website to be viewed online.
EXE and Zip allow you to send to your user by email to be viewed on their computer.
App (Mac Application) is executable application can be run on Mac.
Mobile version is to output HTML flipbook which can be viewed on mobile devices via Browsers.
Burn to CD allows you to burn to disk so you can send your user physical media for viewing on their computer.

But which one you can use to easy send your created page-flipping eBooks to others via Emails, below are two ways for you to settle the issue with:

1. Choose "*.html" output type:
You will get a HTML file, a SWF file and a "files" folder (and a "mobile" folder if check "Also Make Mobile Version" option in Flip PDF or Flip PDF Professional), then you can upload all these files online to send a single link of your 3D E-book to your clients via Emails or just share the E-book link on Facebook, Twitter, Lindedin or other social share channels for others to click and view your eBook online directly.
More details about sharing files online here.

2. Choose "*.zip" output type:
The output ZIP package includes all files and folders outputted in "*.html" type, so you just need to attach the single ZIP file in your emails to send to other people. The receivers just need to unzip the package and then view your created Ebook in their local computers.