How to Edit the HTML Source of a Yahoo Mail Email

HTML editing is not supported in the current Yahoo Mail version

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It's no longer possible to edit HTML in Yahoo Mail messages. However, Yahoo Mail has a rich text editor that alters the appearance of text, inserts links, and adds emoticons. 

If you use Yahoo Mail with Internet Explorer on Windows, make easy use of rich formattings like boldface, custom fonts, or graphical smileys. Even if you do, not all of the HTML richness is available, and even if you don't, you can use HTML formatting in Yahoo Mail.

Yahoo Mail lets you enter HTML code in email messages. If you know at least some basic HTML coding, this is a flexible way to customize and enrich your emails.

Edit the HTML Source of a Yahoo Mail Email You are Composing

To edit the HTML source of a Yahoo Mail email you are composing, select View HTML Source. If View HTML Source is not available — it is only available when the rich text editor is active — select  Allow HTML tags instead.

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