Hi there, @JB-PvtPt

Ye, you can definitely add Carbon copy (Cc) and Blind copy (Bcc) in QuickBooks Desktop. When sending forms, simply enter the addresses on the CC and BCC fields.

Here's how:

1. From the form, select the Email icon.
2. Click the Cc: Bcc: link.
   
3. Enter the addresses.
4. Review the subject line and email content.
5. When you're done editing, select Send.

You can also have default email in the Bcc field when sending forms. Here's how:

1. Go to the Edit menu and select Preferences.
2. Click on Send Forms in the left-hand menu, then proceed to the Company Preferences tab.
3. Enter the email address in the BCC field. 
4. Click OK.

For more info about emailing sales forms and how to personalize them, check out these articles:

• Email Sales Forms In QuickBooks Desktop
• Create Custom Email Templates In QuickBooks Desktop 

You can also keep track of your invoices if they were sent. You can also see if your customer already received and read it.

I'm only a post away if you have any follow-up questions about sending emails. Wishing you and your business continued success.