The System Mail Settings is a secondary email entered only once by your super user as a backup. 

If for whatever reason your personal emails aren't connected or have disconnected (if you've changed your email password etc) any emails sent from Vincere will still send - however they'll send from what is entered in system mail settings by your Vincere super user.  This is why it's important to enter a generic business email here e.g. hello@vincere.io or support@yourbusiness.co.uk. 

To setup, head to Settings > Admin Settings > Email Settings

Select 'Edit Mail Settings'.

Enter your company-wide generic email domain here e.g. hello@vincere.io or support@yourbusiness.co.uk and connect the email.