Customer email is set as one address but when i sent invoices and/or reminder invoices they get sent to our address?

Hello, Robin. 

I'll share a couple of pointers to prevent QuickBooks from sending a copy of the invoices or reminders to your company email address. 

It looks like the Email me a copy option is checked in the settings. When sending an invoice, we will be receiving a copy to the company email address. 

We can turn it off by going to the Account and settings page:

1. Go to the Gear icon, then select Account and settings. 
2. Click the Sales tab. 
3. Expand the Messages section. 
4. Uncheck the Email me a copy at box. 
5. Hit Save, then Done. 

For the reminder invoices, let's make sure to uncheck the Send me a copy box as we send them to the customers. This will prevent us from receiving a copy as well. 

If need more details about sending sales forms to your customers, we can check out this article: Email a sales form or report to multiple email addresses.

Need help utilising the reports to see your sales and other data? We can browse a number of articles from the Financial reports page. The guides will help us run reports and how to customise them to see the data we need. 

Do you have any other concerns regarding your customer invoices? Let me know and we can work things out. If you have questions about other entries such as your expenses, add them to your reply and I'll help you out.