Are you talking emailing from HM2? Or how to copy/paste a HH so that you can email it in your email client?
You can't email directly from HM2. You can export the hand to a text file, you can copy/paste it in a variety of different formats, you can even upload it to Your HM on their website where you can link to it or copy it from there. With any of those ways, you will still need to email it with your own email account, from your own email client/web browser.
Did you figure it out? The easiest way to do it is to Right click on the hand, click View to get into the Hand Viewer, then at the bottom there are the multiple options for Copying to the clipboard or exporting it to a file.