What a signature is and why you'd want one

A signature in Yahoo Mail is a block of text that appears automatically at the bottom of every email you send. It typically contains your name, job title, phone number, or any other information you want recipients to see without typing it each time. Once you set it up, Yahoo Mail adds it to outgoing messages without any extra work from you.

Most people use signatures for professional emails — they save time and make sure your contact details reach the person you're writing to. You can also create multiple signatures and choose which one to use for each email, which is useful if you manage different accounts or roles within Yahoo Mail.

Key Takeaways

  • You create a signature in Yahoo Mail by going to Settings, then Compose and Address Book, then Signatures.
  • Type or paste your signature text into the box, then click Save — Yahoo Mail will add it to every new email you send.
  • You can create more than one signature and pick which one to use for each message.
  • Signatures appear only on emails you send going forward, not on past messages.

How to access the signature settings

Open Yahoo Mail in your web browser and look for the gear icon in the top right corner of the screen. Click it and select Settings from the dropdown menu that appears.

Once Settings opens, you'll see a list of categories on the left side. Click Compose and Address Book to expand that section. Then click Signatures — it's usually near the bottom of that expanded list.

Creating your first signature

When you open the Signatures page, you'll see a box labeled "Create a new signature" or similar text. Click in that box and type or paste the text you want to appear at the bottom of your emails. This can be as straightforward as your name, or it can include your job title, phone number, website, or any other information you want to share.

After you've entered your text, look for a Save button at the bottom of the page and click it. Yahoo Mail will now add this signature to every new email you compose. The signature won't appear on emails you've already sent — only on messages you send from this point forward.

Formatting your signature text

Yahoo Mail's signature box accepts plain text, which means you can't use bold, italics, or colored text the way you might in the email body itself. If you want your signature to stand out, use line breaks and spacing — press Enter to create new lines and use dashes or asterisks to create visual separation.

For example, you could type your name on one line, your title on the next, then a line of dashes, then your phone number and email. This structure is straightforward to read and doesn't require special formatting.

Creating multiple signatures for different purposes

If you manage different email roles or want different signatures for different situations, you can create more than one. Go back to the Signatures page in Settings and look for an option to add another signature — it's usually a button labeled "Create a new signature" or a plus icon.

Type your second signature and save it. Yahoo Mail will remember both signatures. When you compose a new email, you'll see a dropdown menu near the bottom that lets you choose which signature to attach, or you can choose not to use one at all.

Removing or editing a signature

If you want to change a signature you've already created, go back to the Signatures page in Settings, find the signature in the list, and click it to edit. Make your changes and click Save.

To remove a signature entirely, open it from the Signatures page and delete all the text from the box, then click Save. You can also look for a delete button or trash icon next to the signature name — if you see one, clicking it will remove that signature without affecting others you've created.

Why your signature might not appear on some emails

If you've created a signature but it's not showing up on an email you just sent, check whether you selected it when composing. If you created multiple signatures, Yahoo Mail might not automatically attach one — you may need to choose it from the dropdown menu each time.

Also check that you actually saved your signature in Settings. If you typed it in and closed the page without clicking Save, Yahoo Mail won't have stored it. Go back to Settings, Compose and Address Book, Signatures, and make sure your signature text is there.

Frequently Asked Questions

Can I use images or logos in my signature?

Yahoo Mail's signature feature accepts text only, not images or logos. If you need a logo in your signature, you'll have to add it manually to each email by inserting an image into the message body — it won't be part of the automatic signature.

Will my signature appear on emails I forward or reply to?

Yes. When you reply to or forward an email, Yahoo Mail will add your signature at the bottom of your response, below the original message. If you don't want a signature on a particular reply, you can delete it from the message before sending.

What happens if I change my signature after I've already sent emails?

Changing your signature only affects new emails you send going forward. Emails you've already sent will keep the signature they had when you sent them — Yahoo Mail doesn't go back and update old messages.

Can I have different signatures for different email addresses if I manage multiple Yahoo Mail accounts?

If you access multiple Yahoo Mail accounts through the same browser, each account has its own Settings and Signatures. Log into each account separately and create a signature for that account. When you switch between accounts, Yahoo Mail will use the signature you set for whichever account you're currently in.