Office 365: Get Email ID

1. Login to Microsoft Azure with admin user.
2. Open 'Manage Azure Active Directory'.
3. Click on Manage -> Groups.
4. Click on group to get email/ID.
5. Copy the Group email/ID(Object id).

User email / ID

1. Login to Microsoft Azure with admin user.
2. Open 'Manage Azure Active Directory'.
3. Click on Manage -> Users.
4. Click on user to get email/ID.
5. Copy the User principal name(email)/ID(Object id).