Why are over 10 invoices recording a "delivery issue" emails undelivered - bounced? Email addresses are correct.

This isn't the kind of impression I want you to have with QuickBooks, Cleifiog. 

I understand how important it is to keep track of your customers invoices. I’ll share some information about your concern about sending invoices in QuickBooks Online (QBO).

Currently, there’s an open investigation about the invoice that shows as delivery bounced or delivery issue when sending an invoice to the customer. Thus, our engineers are still working on a permanent fix for this issue.

I'd recommend contacting our QuickBooks Online Customer Care Team. They have the tools to verify your account and add you to the list of affected users. Then, once resolved, they will send you an email about this issue.

Here's how to reach them:

1. Click the Help menu in the upper-right-hand corner.
2. Type in "Talk to a human", then press Enter.
3. Look for I still need a human and click on it.
4. Click Get help from a human or Contact Support Team.
5. Select between Send a message, Schedule an appointment, or Get a callback.

Please ensure to review their support hours to know when agents are available. This way, you can contact them at a time that is convenient for you.

I've also included the resources below that can help you how to handle customer transactions in QuickBooks Online:

• Record invoice payments in QuickBooks Online
• Common custom reports in QuickBooks Online

You're always welcome if you need further assistance with sending invoices. We're always here to lend a helping hand.