Please add the troubleshooting information to your post To find the Troubleshooting information:

• Open Help (or click on three-line-icon and select Help)
• Choose Troubleshooting Information
• Use the button Copy to clipboard to select all. Do not check box "Include account names"!
• Paste this in your post.

Thunderbird: Everytime I send and e-mail it sends a copy to the in box. I have the correct info in the settings pane.

I don't know how to add troubleshooting information or what information. I have checked setting the sent folder is correct it is the extra copy I want to stop