I cannot send an invoice out via email...what suggestions do you have ?

Let's get this working so you can manage your invoices again, mikeart67.

Errors when sending invoices or other transactions usually occurs if:

• the settings are changed.
• there's a damaged on your company file.
• the a program component necessary for sending the transactions is damaged.

Before we do any troubleshooting steps, I'd recommend updating your QuickBooks to the latest release. This will provide minor fixes on the program.

There are different ways to fix this issue. The detailed steps are already included in these articles:

• Fix Error - Could not connect to the email server
• How to fix "Error - QuickBooks is unable to send your email to Outlook"

If the troubleshooting steps on the first article won't work, you can follow the second one. 

Keep us posted of the results so we can help you more with this.