said by Mele20:
Proxo is AUTOMATICALLY BYPASSED for https.
I realize that you have Proxo bypassed for https links, which is why I pointed out that most of the rest of the webmail pages are just plain http, which proxo would mess with. That could be the reason you have navigation issues with the webmail site.
You may also want to check your cookie configuration as I know it's rather non-standard. It's possible the webmail site may be trying to track a cookie between pages...
Either of those, proxo and strict cookie handling, I could see causing all sorts of odd navigation issues.
Lost mail is probably caused by something else entirely. How many email clients have you configured for your RR email since you've gotten Win8? Thunderbird, SeaMonkey, and Opera we know about. Outlook? any others? Maybe something you didn't explicitly configure, but may have imported it's configuration from another program?--
Two is one, one is none. If it's important, back it up... Somethimes 99.999% availability isn't even good enough.