To ensure safe delivery of your Monthly Statements to your customers, you can record an alternate e-mail address for your client/s specifically for accounts/billing purposes.
To do this in Ardex, go to
People & Firms
Open any customer profile
Enter an accounts e-mail address beside Accts e-mail:
Now any accounts e-mail will be sent to this e-mail address, and general communications will continue to be sent to the main e-mail address.