Triggered emails --- how to make favicon or store logo appear in customer email inbox

I tested triggered email when customer makes a purchase, but my logo on the email (in yahoo email) does not show up. Instead, Yahoo.com email just shows a single letter. How can my logo show up in the customer email when the triggered email is sent?

hi robmazemfg

This is something you can not directly influence, since this is done by the Email-Provider (in this case Yahoo Mail). What you can do is setting up a favicon on your Wix Site. If you’re lucky your Email Provider will then show this. It all depends on the relevancy of your Website.