Customers report they are no longer receiving invoices that are sent through Quickbooks. Only generic domains (icloud, gmail). Anyone else? Fixes?

Welcome to the Community forum, hamish. Allow me to share some information on why your customer is not receiving invoices from QuickBooks and how this can be fixed.

If an email fails to deliver, it could be because of an incorrect email address or a temporary problem with the recipient's email server. To avoid this, we need to ensure that you have associated the correct email address with the right customer. By doing this, you can make sure that your customers receive their invoices on time and can make prompt payments.

With this, let's walk through some of the steps below to check what's causing this issue and solve it promptly.

First, let's check the status of the sent invoices. To do so, go to the Sales tab, then click Invoices. In the Status column, you'll see if the invoices are undelivered or sent.

After that, make sure the customer's email address is correct by following the steps below:

1. Go to the Customers & leads tab, then click Customers.
2. Choose the customer who didn’t receive the invoice.
3. Select Edit.
4. Check the email address and edit it if needed.
5. Resend the invoice.

If you've confirmed that your customer's email is correct, you can let them check if the invoice is in their email's junk or spam folder.

You can also review this article for more information on why your customer didn't get the e-invoices and how to fix them: Troubleshoot if customers aren't receiving emails from QuickBooks Online.

Also, there's a possibility that your email service provider's server does not provide a notification when there's a delivery issue with your e-invoices. To see the list of bounced emails with delivery errors, you can review this article: How to view the list of bounced emails with delivery errors.

In addition, I've added this article to guide you with entering invoice payments in QuickBooks: Record invoice payments in QuickBooks Online.

Feel free to reply to this thread if you need additional help with your e-invoices in QuickBooks. We'll be here 24/7 to assist you.