Sadly there are a number of “spambots” which roam the web “harvesting” email addresses to send spam to. Often you have no choice but to include a mailto link with an email address in a web page. Fortunately most of these spambots do not seem to have complete HTML parsers, and most do not execute JavaScript.
“Obfuscation” simply means that techniques are employed to modify email address strings that appear on your site in such a way that bots scraping your site are unable to identify those addresses; however, at the same time those emails addresses should still look and work correctly for visitors, as much as possible.
I have added this feature into the HWBD BS4 WordPress theme – it can be applied easily with a shortcode anywhere in the website. So you can use it (or not) as you like.
In the interest of improving this theme I have also added included an optional mobile accessible contact number to the top bar – so this will sit nicely alongside the social media icons.