Where do I find 'send forms preferences' in Quickbooks Premier Edition 2019? I need to fix my email address.

Hi, @selnoc.

It's my pleasure to walk you through the process of where to find the "send forms preference" in QuickBooks.

1. Click on Edit from the menu bar.
2. Select Preferences.
3. Click on Send Forms from the left panel.
4. Choose the Company Preferences tab to make any changes to your email.

Also, I'm adding these articles about customizing your email templates and fix error message in sending email : 

• Customize email templates in QuickBooks.
• Use and customize form templates.
• How to fix "Error: QuickBooks is unable to send your email to Outlook

Please, don't hesitate to reach back out to us if you have any questions. The Community is always here to help. Keep safe always.