I understand the importance of changing the default email address of the sender's invoice, GrinOnIndustries. Allow me to share insights about this.

When sending an invoice, the quickbooks@notification.intuit.com is used as default. It'll help you stay notified once the transaction has been sent, read, or paid. Changing it to your company email address is currently unavailable.

To ensure your customer receives the email without recognizing it as spam, I suggest asking them to add the service-related email addresses as a safe sender on their email account. You can provide the steps below to do so:

1. From Intuit’s service email addresses, add the QuickBooks product's sender addresses to your contact list, address book, safe senders list, or allow list.
2. Refer to one of the following support articles for your email provider:
   • AOL Mail: Manage spam and privacy in AOL Mail
   • Apple Mail (Mac): Block or unblock senders in Mail on Mac
   • Xfinity Email: Add Email Addresses to Your Email Safe List in Xfinity Email
   • Gmail: Gmail marks valid email messages as spam
   • Microsoft Outlook: Safe Senders in Outlook.com
   • Mozilla Firefox: Add, Manage, and share contacts
   • Yahoo Mail: Manage spam and mailing lists in Yahoo Mail

For more details, please see this article: Receive Important email messages from Intuit.

In case you have a Gmail address, you can link it to the program so that the sender's email will be updated when you send the invoices. Here's how:

1. Create an invoice or open an existing one.
2. Once the information is complete, select Save and send to open the Preview window.
3. Click the From drop-down menu.
4. Choose Add Gmail address, then Connect Google account.
5. Sign in to your Google account.
6. Hit Allow. The Gmail address now appears in the From field.

To learn more about this, please see this article: Use your Gmail address to send invoices in QuickBooks Online.

Additionally, I've added this resource to help you send reminders to customers when your invoices are, or soon to be, overdue: Notify Customers automatically or manually in QuickBooks Online.

You can always drop by again if you have concerns about managing or sending your invoices. Need help with reports, sales entries, or tax forms? Let us know, and my colleagues and I will be here to help.