still have icon on sent messages?

[Caney Creek RV]

I got the standard answer of "Yahoo doesn't have icon pictures on sent mail, it must be coming from some liked or signed iintio account". But this is not true. I'm only signed into Yahoo mail, I'm not linked to any other accounts or social media, I don't even have the picture on my computer. But on sent mail, the little icon picture still shows up on the recievers end. HELP!

[Trooper63]

I could guess on this one, but instead will ask you to submit another question and provide more detail.

Where on the received email is this icon showing up?
What does the icon look like?
Do all of your recipients see this icon?
If you send an email to someone and also include YOUR email address
in the header do you see the icon when you open the email up?