You can create and send an email or a group of emails in HTML format or Plain Text format. The maximum character count for emails sent from within Jackrabbit is 10,000; both formats offer a countdown remaining character counter.
HTML Emails
HTML format allows for special formatting, including using fonts, creating links, etc.
HTML format also has a built-in spell checker if you are using any of the following browsers: Internet Explorer 10 or later, Firefox 3.6 or later, or Chrome 10 or later. Potential misspellings are underlined in red. Right-click on the word to see possible correct spellings. Note: Your browser's spell-checker will not work on text that you load from an Email Template.
Plain Text Emails
Plain Text format does not allow you to add any special formatting (bold, underlined, centered, etc.).