Hello there, @erinwal. I understand your sentiments about the Delivery Server Down error that affects the activity of sending invoices. Allow me to provide you with updates about this matter.

QuickBooks users experienced the inability to email invoices. Our engineers have already identified and resolved the issue. Therefore, you can now send your invoices again.

You may want to visit this link to check for the updates: //status.quickbooks.intuit.com/.

I appreciate your patience and understanding. Please get back to us if you have further questions about any QuickBooks-related concerns. We're always here to help you. Take care!