Why does every new email that is not junk have a "NotJunk" graphic?

This started happening out of the blue, though I supposed I may have caused it inadvertently.
How do I get rid of the “NotJunk” graphic in my incoming emails?

Thank you for any help you can give me on this.
Uploading: image.png…

Regards,
Andy

Hi Andy, this can be caused by other previously used apps or servers, here is a workaround you can use: