Hi there, nickmorrisonelectric. There are a few common technical triggers that can keep your sales forms from landing in the customer's inbox.
Sending yourself a test is also the perfect way to start troubleshooting. Because you aren't receiving them either, you can refresh your email connection or adjust a few settings in your account to ensure smooth delivery.
First, reset your email address in your account settings. Here's how:
- Go to the Gear or Settings icon and choose Account and settings.
- Proceed to the Company section, then scroll-down and click Edit ✎ in the Customer Contact info field.
- Clear the Company email field and enter the desired address as is, even if it appears correct.
- Select Save, then click Done.

After that, send another estimate to yourself to test it out.
Additional troubleshooting steps are also provided in this article: Troubleshoot if customers aren't receiving emails from QuickBooks Online.
The Community is always here if you need anything else.