I see delivery issues when sending emails to customers with invoices directly from Quickbooks. How can I fix this?

Hey there rvora-tmlcorp-co,

Thanks for reaching out to us here. It's important that you are able to send invoices to your customers without any issues. QuickBooks Online is a great tool to have, it allows you to email invoices to your customers and saves you time. I can provide some information on emailing invoices.

Delivery issues when emailing invoices to your customers is currently a known issue in QuickBooks Online, our Engineers are working hard to get this issue fixed. I recommend trying some troubleshooting steps to try resolving it for your account. Here are some steps to resolve issues that are caused by browsing data:

• Clear your browser cache if you're using a browser
• Try a browser if you're using the app
• Try a private browser window
• Try another browser type
• Make sure you're using a supported browser and system
• Reset your Internet or try on another computer or device

If you are still not able to successfully email Invoices to your customers, I recommend reaching out to the support team outside of the Community. They'll be able to verify your account details in a secure setting as well as view your screen to see what may be causing the issue. They will also be able to attach you to the list of affected accounts so you can be notified when the issue is resolved. You can reach out to them using one of these methods:

Schedule a Callback or start a Chat: click (?)Help in the upper right > type and enter "Contact support" into the QB Assistant > click Contact Us > explain your situation > click Let's Talk > choose Get a callback or Start a Chat.
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If you have any other questions, feel free to reach out here.