How to add a signature to your Yahoo Mail account
A signature is a way to include the same details and information on all of your sent messages. This article shows you how to set or add a signature to your Yahoo! Mail account on both desktop and mobile.
How to add a Yahoo! Mail signature on Desktop
Step 1: Go to https://www.yahoo.com/mail. This will open your Yahoo! mail inbox if you're already logged into your account.
If you aren't logged into your account, enter your email address and password to sign in.
If you don't have an account yet, sign up for a new Yahoo account now.
Step 2: After signing in, click Settings shown in the upper-right side of the inbox page. Then, select More Settings.
Step 3: Click Writing email in the left column.
Step 4: Below the Signature heading, click the white switch to the right of your Yahoo email address. The switch will now turn blue and a text box will appear below the account address. This indicates that the signature feature is now enabled for this email account.
Step 5: Enter your desired signature into the Signature field. Use the formatting toolbar under the text field to add an image or a link in your signature. You can also change the text format and align your text.
Step 6: Click Back to Inbox. It's on the upper-left side of the page. All your changes have been saved. You will now be returned to the inbox.
How to add a Yahoo! Mail signature on mobile
Step 1: Tap the Yahoo! Mail app icon to open your Yahoo! Mail and log in to your Yahoo! account.
Step 2: Tap ☰ in the top-left corner of the screen. A menu will open.
Step 3: Tap Settings.
Step 4: Scroll down and tap Signatures in the General section. This will open the Signature menu.
Step 5: Tap the white Signature switch. You will find this in the upper-right corner of the screen. It will now turn blue. This indicates that the signature feature is now enabled for this email account.
On Android, this is the Customize for each account switch. If the switch is already blue, the signature feature is enabled.
Step 6: Tap the text box to add your signature. The default signature is Sent from Yahoo Mail on iPhone/Android. You can delete it and add your own text. Otherwise, skip to the next step.
Step 7: Tap Done in the bottom-right corner of the signature box. On Android, you can just tap the Back button to save your signature.
Your new signature will now be applied to all of your future emails sent from your Android or iPhone.