Is there a clean way of doing so? I would prefer doing that in functions.php using some action and/ or filter hooks. The 2nd-best option would be using some good plugin out there. (I haven't seen 1 ...
I'm looking for an example wp-signup.php template for which to work with. I've done a search in Google but nothing from the past year comes up. :/ I've tried: template-dir/registration/activity.php ...