This would be so handy so you can tell if your customer has received their email!
This is becoming ever more important as spam systems and "intelligent" software filters out emails before they even reach you. I have several Customers who have not recevied invoices first time, causing wasted time and lat epaymetns.
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This is becoming ever more important as spam systems and "intelligent" software filters out emails before they even reach you. I have several Customers who have not recevied invoices first time, causing wasted time and lat epaymetns.