Here are the steps on sending files via CamScanner as the Mail option is no longer working: 
1: After you take a
picture of your image,select the image and then use the share button in the middle, 
2: Then chose share as
PDF then share one more time at the top. 
3: This will now give you options like
use Outlook, click on Outlook and it will open up a new email with your
picture.  
Here are steps bellow with pictures: