How does emailing invoices work? I have set up the email to send to QBO and then I try to send invoices but nothing comes through. Am I missing something?

Hey there, jonamerl1980-gma.

Thanks for reaching out to the Community for support. QuickBooks Online provides the option to send sales forms to your customers by email. I recommend taking a look at this article. It will provide detailed information as well as steps on how to proceed. 

Feel free to reach out if you have any other questions. Im here to help!