Yes. By default your account will forward messages you receive to your account email address. You can manage your notifications by going to your Settings page.
Announcements are PUBLIC messages that you can send to a persons profile activity tab, including your own profile. All announcements will show on the receivers activity stream and in their inbox.
You can track comments you’ve made on other works (or even your own works) by browswing your activity tab on your profile. You can also see all comments you’ve made, across any members work by going to your inbox (myfolio.com/inbox#comments)