As a long-time Freeserve user (then Wanadoo -> Orange -> EE), I too have been frustrated by the difficulties in finding the web-based email login, esp since EE took over. When I click on your link above (if I pasted it OK), I get directed to
www.orange.co.uk, from which the drop down under 'email' on the LHS works for me, but I also see a login on the RHS (posting of an image fails as its too large)....
...which then works for me. They may have fixed it since your post. Not that I usually get there that way. My bookmark for email login contains this:
https://web.orange.co.uk/r/login/?Se...%3DMAILWELCOME which takes me to (image too large again)...
...Yet another (different) login, which still takes me to email. If I log out, it switches to a further login screen, which takes me to my broadband account, not the email. What a mess!
Sorry, this was only going to help if I could show the page image, so you could tell if you were getting something else! If you still can't get in, I will have to re-activate my dropbox account, or find a picture-sharing service.
PS If anyone can work out how to stop EE asking me for a 'preferred email address' every time I log in - this is what the requesting page says:
"
WE'D LIKE TO HELP YOU BETTER
You haven't registered an email address with us. We'd like to be able to contact you easily if we need to, to improve the service we provide.
Simply enter your preferred email address below and we'll send you an email to verify it. Please click on the link in the email within 24 hours."
Note that my actual fsnet email address (that I can log into as above) is not permitted for some reason, so they want me to provide another - but I only have (and use) the one address. What are they thinking of? It seems impossible (or not worth the effort to try) to contact them in a useful manner - and I know i could set up a temporary email address to fulfil their request, but can I be bothered?