It would be very useful to know if emailed statements are not received by the customer. You have this function with emailed invoices but not statements. If statements bounce back we have no idea that this has happened as there is currently no notification of this. A 'statement bounce back / not received' notification would help maintain cashflow.
Guest
e-mail address errors notification Merged
Invoice Tracking report Merged
Option to see if statements have been received and read like you can with invoices Merged