To make the most of readability tools, consider the following steps:
Draft your email without worrying too much about readability initially. Focus on getting your message across. Run your text through one or more readability tools to get an initial assessment. Review the suggestions provided by the tools and make necessary adjustments to simplify your text. Recheck the readability score to ensure improvements have been made. Test your email with a small segment of your audience to gather feedback on readability.