In email development, removing ‘special’ characters is important. Many email clients won’t show special characters unless they’ve been replaced with an HTML entity. Some of the more common cases of this occurring are smart quotes, ellipsis, copyright symbols, and accented characters.
Rather than search for each of these characters by hand, we use a neat little script that will find and replace all common examples of this – there’s even a version for fractions, which comes up a lot when working with recipes. If you’re interested in trying this out for yourself, the script is available on Github.