[header] How to customize an email [title] Understand how to use the formatting and customization icons in an email. [step] These icons are located in a formatting toolbar at the top of an email. With most email providers, you will use your cursor to highlight text you want customized, and click on the formatting icon of your choice. 
[substeps] To learn more about a particular customization or formatting icon, place your cursor on top of the icon in question, then wait for your email provider to display the description of the icon. [title] Add bold formatting to words or phrases of an email.