Yahoo Mail on the web accepts an HTML signature if you paste it as it looks.
-
Copy the signature as it looks
Download your HTML signature file from your company signature page.
- Open the file in Chrome, Edge or Firefox. Leave Safari for this step. It can change the formatting when you copy.
- Click the signature, select all with Ctrl+A (Windows) or Cmd+A (Mac), then copy with Ctrl+C or Cmd+C.
Copy the signature as it looks. If you paste the raw code into a normal signature box, the email will show the code instead of the design.
-
Open Yahoo signature settings
- Click the More options icon, then Settings. Some layouts use the Settings gear, then More settings.
- Select Writing email.
- Switch Signature on for your Yahoo address.
-
Paste
Click in the signature box and paste. Click Compose and send yourself a test.