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How to Add Your Signature to Yahoo Mail

Install your email signature in Yahoo Mail

Yahoo Mail (Web)

1

Access Settings

Click the gear icon ⚙️ in the top right corner

Select "More Settings" from the dropdown menu

2

Navigate to Writing email

In the left sidebar, click on "Writing email"

3

Enable Rich Text/HTML

Under "Compose settings", make sure "Rich Text/HTML" is selected

Tip: This allows formatted signatures with colors, fonts, and images
4

Copy Your Signature

Go to your Signelli dashboard

Click "Copy HTML" on your signature

5

Add Your Signature

Scroll down to the "Signature" section

Toggle the signature switch ON

Click in the signature editor box

Paste your signature (Ctrl+V or Cmd+V)

6

Configure Signature Settings

Choose when to append your signature:

  • On all outgoing messages
  • Only on initial messages (not replies/forwards)
7

Save Your Settings

Scroll to the bottom and click "Save"

Done! Your signature will now appear in new emails

Yahoo Mail Mobile App

Note: The Yahoo Mail mobile app has limited signature support. Only plain text signatures are supported on mobile.
1

Open App Settings

Tap your profile picture or the menu icon

Tap "Settings"

2

Select Your Account

Tap on your email account

3

Add Signature

Tap "Signature"

Toggle the signature ON

Enter a plain text version of your signature

Yahoo Mail Tips

Formatting looks different?

Yahoo Mail may adjust some HTML formatting. If your signature doesn't look right:

  • Try pasting without formatting first (Ctrl+Shift+V)
  • Then use Yahoo's editor tools to add formatting
  • Or create a simpler version specifically for Yahoo

Images not showing?

Yahoo Mail can be restrictive with images. Ensure:

  • Images are hosted on HTTPS URLs
  • Image files are under 500KB
  • Use common formats (JPG, PNG, GIF)

Signature appears twice?

Check your signature settings to ensure it's not set to append on both new messages AND replies if you don't want that behavior.

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