Emailing invoices to one customer won't send, never had a issue in the past?

Hi there justin-harbers14,

Thanks for reaching out about emailing invoices. QuickBooks Online is a great tool able to assist in creating and sending transactions for your customers. I can provide some information about errors when sending forms by email.

If a customer isn't able to receive invoices or other forms you're sending them from QuickBooks Online, you can try the steps in this article. There are a few different methods to resolve errors for a customer unable to receive the emails sent.

If you have any other questions, feel free to reach out here.