Paperless office - can I view list of emailed invoices on a specific date?

Hi!

We email invoices out daily using the paperless office. Occasionally, customers will say they never received the email(s). Is there a log/report or something where I can see which emails were sent out on a given day? I know there's a pop up after the emails are sent saying how many are sent but I'm looking for a way to see what was sent out on a previous date. This way if someone says they weren't emailed the invoice, we can look to see if that's true and investigate why that may have happened (user error/tech issue).

Is this possible?

TIA!