I've checked our records, EBMECH12. The case is still open and it's being prioritized.

I'll share a few possible reasons why this is happening:

• A damaged QuickBooks installation.
• Domain admin is blocked.
• Account settings from the email provider.

I can share some workaround to fix it. First, let's ensure QuickBooks Desktop software is in its latest release. We periodically provide maintenance release and updates to fix emailing concerns, add new features, and update compliance information.

Next, close all Outlook, then re-open it.

Then, create and send the invoice through email again.

If you're still encountering the same issue, please reach out to our customer care support. Just follow the steps provided my colleagues at the top.

 We're just around if you need our help. Feel free to drop by anytime.