There is no special requirements for email address to register Zosi Smart App account. If your email address can send out or receive emails normally, it usually can be used to make registration.
If you fail to register an Zosi Smart App account, you can report your issue to us:
Our Whatsapp: +1-866-841-6932
Support Email address: firstname.lastname@example.org
Our Facebook: https://www.facebook.com/ZosiTechnology/
Support center: email@example.com