For Apple users, the Corentium Pro App only uses the default Apple iOS mail software, this is factory installed into your iPhone or iPAD. Otherwise, you will not be able to send out a report, but that is an easy fix.
If you currently do not have this, you will need to reinstall it into your iOS device.
To do so, go to the App store, type MAIL in the search bar and select the one that is identical to the icon below. It should be written MAIL ("productivity’" underneath) choose "GET".
You need this "Mail" app configured on your iPhone to send reports generated by the Corentium Pro.
You can configure your Gmail, Hotmail, iCloud, etc.
Simply follow the link below and it explains how to configure your device.