If you find that none of the email links on ArtStation or on your ArtStation website are working, the problem is with your browser and not setting up a default email client. If you don't set up a default email client, no email links will work online - not on ArtStation, not anywhere.

ArtStation uses the universal HTML mailto tag that has existed practically since the internet began.

The tag looks like this:

<a href="mailto:youremail@yourdomain.com">Email</a>

With webmail becoming more popular, browsers sometimes don't get set up with a default mail application.

The solution for this is to set up an email client with your browser. Google "clicking mailto link nothing happens" to find solutions to your browser.