Changing the email address used to send invoices is easy peasy, @progressivemedia.

You can go to the Send Forms menu to change the email address you used to send invoices to your customers. Or you can also add a new one so you'll have the option to select which email address you'll want to use. Here's how:

1. Go to the Edit menu, then select Preferences.
2. In the Preferences window, click Send Forms on the left menu.
3. Under My Preferences, select the default email address. Then, click Edit or Add.
4. In the Edit Email Info screen, enter the new email information.
5. Click OK to save the changes.

I'm adding this article to learn how to set up a new email service in QuickBooks Desktop: Connect your email to QuickBooks Desktop.

You might also want to customize email templates and use them to send messages from QuickBooks. Here's an article you can read for more guidance: Create custom email templates in QuickBooks Desktop.

Keep in touch if you need any more assistance setting up a new email address, or there's something else I can do for you. I've got your back. Have a good day.