It is possible to work with the same email address you're already using. All mail traffic from iController will then be stored on your email as well. Keep in mind this can lead to an (information) overload in your mailbox.
We strongly advise to use a separate email address for iController. This will reduce information overload and makes it possible to keep the mailbox of both your iController and your general work email address organized.
View our related article: How does mailing work in iController?