Not all words in your email signature carry the same weight. Your standard sign-off deserves a bit more dazzle and flair than plain text can provide to make it truly yours. Find out here how to add formatting to your Yahoo Mail signature ⤓ — and easily make text bold or big, change fonts, add color and more — so your emails leave just the right impression every time.
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How to Add Formatting Flair to Your Yahoo Mail Signature
Time needed: 5 minutes
To make text bold or small, change its color or alignment and more in your Yahoo Mail signature:
- Go to your Yahoo Mail signature settings in a desktop browser.
- Change font color, alignment, size, and more:
1. Make sure the part of your signature you want to format is highlighted.
2. Click the desired button in the formatting toolbar:
- B makes text bold.
- I makes text italic.
- Text color lets you change the text and background color of the highlighted portion.
- Font lets you pick a font and change the font size.
- More options is for changing text alignment, for indenting text, and for turning highlighted parts into lists (each new line in your signature becomes a new list item).
- Turn any text or image into a clickable link in your Yahoo Mail signature:
1. Highlight the text, image or email address. (Note: Yahoo Mail will automatically turn URIs (such as https://ladedu.com) into clickable links (such as https://ladedu.com). You can edit or remove these links like links you have added.)
2. Click Link in the formatting toolbar.
3. In the text field beneath the text to be linked (over the example text http://www.yahoo.com), type or paste the target URI or address for the link. (Tip: To have clicking create an email, enter "mailto:" followed by the email address; for an email to ladedu@ladedu.com, for instance, type "mailto:ladedu@ladedu.com".)
4. Click Save.
It’s a proper signature now?
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How to Add Formatting to Your Yahoo Mail Signature: FAQ
If I format text in my Yahoo Mail signature, what will it look like for people who only receive plain text?
Yahoo Mail will automatically create and produce a plain-text version of your rich-text signature. It contains all the text stripped of all the formatting (i.e., no boldface, font choices, colors, or text alignment, for example).
Can I use emoji in Yahoo Mail signatures?
Yes.
Use Unicode characters freely in your signature — Including emoji. Do keep in mind, though, that depending on fonts installed and local language settings, some devices may not display all special characters perfectly.
(Tested with Yahoo Mail in a desktop browser; first published December 2017, last updated June 2026)