Kimbert on "[Plugin: Jetpack by WordPress.com] email share button"

Hi - I'm using Jetpack share buttons on my site but am having an issue with the email share button that gives the following error :
?shared=email&msg=fail

www.trois-echos.com

https://wordpress.org/plugins/jetpack/

Your site doesn't appear to be configured right now:
http://i.wpne.ws/h93A

You'll want to configure it as soon as possible to make sure no one does it instead of you.

Let me know when it's ready, I'll take a look at the email sharing issue!

Sorry Jeremy

that is not our address now we have transferred it to ssl

I cannot figure how this Jetpack works with wordpress.com?

Where do I configure this?

I manage 3 sites