Can bounced emails be resolved on my end?

I understand how important it is to keep track of your customers invoices, @jpwhite1277.

To clarify, may I know if you encounter any error messages when attempting to send invoices in QuickBooks Online (QBO)? This information is a great help so I can verify if there's any existing investigation about this.

There are two possible reasons your invoices are undelivered. I've listed them below:

• Because the email address was entered incorrectly
• There was a temporary issue with the recipient's email server

To resolve this, I'd suggest verifying if your customer's email address is correct, and edit if need be. Then, resend the invoices. If the same thing happens, I'd suggest confirming with your clients if there are any issues with their email provider. This is to verify if their system blocked any incoming emails from QBO.

Also, here's a helpful article that you can open to further guide you in delivering the invoice in QBO: Undelivered Invoices in QuickBooks Online.

In the meantime, you want to download the invoice and send it manually to your customer by attaching it to an email. Here's how:

1. Navigate to Sales, then choose the Invoice tab.
2. Next, open an invoice you want to send. 
3. Then, select the Print or Preview button on the bottom part of the screen. 
4. Click the Download option. 

Just in case you want to personalize your sales forms to reflect more of your business identity, customizing the template you use in QBO is a breeze.

I've included this article that you can use in the future in case you want to personalize your sales forms: Customize invoices, estimates, and sales receipts in QuickBooks Online.

Please know that I'll be one  post away if you have other questions in regards to QuickBooks. Take care.