Can I see a copy of the email message which accompanied my chaser invoice??

Thank you for reaching the Community, @rfarris. 

You can still review the Messages in the QuickBooks Online settings to check the default email body. Right now, there isn't a way to retrieve nor look back at the emails you sent from QuickBooks Online (QBO). You can try to ask the recipient instead, to forward the email message they received to you. 

Right now, there isn't a way to retrieve nor look back at the emails you sent from QuickBooks Online.

You can set QuickBooks to email you a copy of the forms from the Account and Settings page to keep a record of them.
 

Here's how you can activate a feature that allows you to receive a copy of emails sent out from QBO. Follow these steps:

1. Select Account and Settings from the Gear icon.
2. Click the Sales tab on the left.
3. In the Messages section, click the Edit icon (pencil image).
4. Put a check mark in the Email me a copy at [your email address] box.
5. Click Save and Done once you're through.

I've also provided an article to learn on how to customize invoices, estimates, and sales receipts : Customise invoices, estimates, and sales receipts in QuickBooks Online.

We're always open here, so don't hesitate to tap us if you have further questions regarding this matter. As always, assistance is just one comment away. Have a great day!