Log in to Yahoo Mail:

• Open your web browser and go to Yahoo Mail.
• Log in with your email address and password.

Open Settings:

• Click on the gear icon in the upper right corner.
• Select "More Settings" from the dropdown menu.

Navigate to Signature Settings:

• Click on "Writing email" on the left side.
• In the "Signature" section, toggle the switch to enable it.

Insert HTML Code:

• Click inside the signature box.
• Paste your HTML code directly into the box.
• The signature will save automatically.

Open Settings App:

• Go to the "Settings" app on your iPhone.

Navigate to Mail Settings:

• Scroll down and select "Mail".

Open Signature Settings:

• Tap on "Signature".
• Choose whether you want the signature for "All Accounts" or "Per Account".

Insert HTML Code:

• Delete any existing signature.
• Paste your HTML signature into the box.
• Shake your phone until the "Undo Change Attributes" option appears and select it.
• This step ensures that the HTML formatting is retained.

Open Outlook:

• Open Microsoft Outlook on your computer.

Navigate to Signature Settings:

• Click on "File" in the top left corner.
• Select "Options" from the menu.
• In the "Mail" category, click on "Signatures".

Create a New Signature:

• Click on "New" and enter a name for your signature.

Insert HTML Code:

• In the "Edit signature" section, click on the "<>" icon to switch to HTML mode.
• Paste your HTML code into the text box.
• Click "OK" to save the signature.