When I receive an e-mail from a question that I asked, I click on go to the message on Geonet and it takes me to home page. I usually never log out. Here is a video demonstrating that:
I also logged out. If logged out and I click on the link go to message on Geonet, it will take me to the message, but to respond or interact with the message I have to log in. Once I log in, I am redirected to the home page taking me away from that page again.
Hope this information helps out. I didn't see any other posts related to e-mail issues.