Can I edit my Wishlist email notification settings with the Steam Client, instead of the website?

Solution 1:

As per this article, you can access the email notifications settings from the Steam Client by following these steps:

  1. Switch on the Steam client. Log in to your account.
  2. Click on your name on the top right. You'll see an option called Account details, click it.
  3. This opens up your account within Steam's own browser, in the Contact Info section, you'll see an link called "Manage Email Preferences", click on it. Configure your email preferences below it.