The issue
My employees, when they click on a link in the email notification about a new post, often end up on a page that says "The page does not exist, go back to the Forum..." because they are not logged in or their session has expired. It's difficult to explain to some of them that this is the intended behavior, and sometimes they simply close the page, thinking there was an error or that the thread is no longer relevant.
I would like it so that in such cases—clicking on a link to a specific thread when we are not logged in—it would redirect us to the login page instead of the error page. Is that possible?