Thanks for reaching out to the Community, drogers1. I appreciate your detailed information.

Since your payment notification emails are displaying customer names as email addresses, I'd initially recommend checking with the email provider you're working with. It's possible there could've been changes made which make emails display this way.

If you've confirmed this isn't being caused by anything on your provider's end, I'd recommend checking your browser. It's possible this could have something to do with temporary internet files. Browsing applications store these types of records, but sometimes they can cause issues with certain webpages. You can open a private window and check how payment received emails are displaying.

Here's how to access incognito mode in some of the most commonly used web browsers:

• Google Chrome: Ctrl + Shift + N
• Mozilla Firefox: Ctrl + Shift + P
• Microsoft Edge: Ctrl + Shift + P
• Safari: Command + Option + P

If your notification emails are showing the customer's display name you have on file in QuickBooks while browsing privately, it's safe to say this problem's being caused by the browser. It can be fixed by clearing cached data and Intuit-specific cookies.

In the event they continue displaying an incorrect name for your customers while browsing in incognito mode, you'll initially want to try switching to another browsing application.

Here's a list of supported browsers:

• Google Chrome - version 78 or newer
• Mozilla Firefox - version 76 or newer
• Microsoft Edge - version 75 or newer
• Samsung - version 10 or newer
• Opera - version 68 or newer
• Safari - version 12 or newer (Mac only)

You can also check a browser's compatibility with QuickBooks by utilizing our browser health checkup tool. QuickBooks supports the current and two previous versions of browsers. If you find you're using an unsupported version, make sure to update it to its latest release. Steps for doing so can be found on the particular company's website.

In the event you've found no problems that could be causing this with your browser, I'd recommend using a different device and/or internet connection. If it continues happening on other devices and/or internet connections, you'll want to get in touch with our Customer Care team. They'll be able to pull up the account in a secure environment, conduct further research, and create an investigation ticket if necessary.

I've also included a detailed resource about system requirements for QuickBooks which may come in handy moving forward: System requirements

If there's any additional questions, I'm just a post away. Have an awesome day!