I generally avoid IE whenever possible, so I can't really speak about IE specifically. That said, I HAVE seen that dmznam-esp pop up before. Normal, as far as I'm concerned. Pretty sure the nam in there stands for "Novell Access Manager" which was used to manage accounts once upon a time. I think there are still some old remnants of that. Whatever it is, it IS a legitimate thing. ual.com is the "domain" in this case. Google.com, nonrev.net, skywest.com, etc are all domains. whenever you have something before that, like skynet.ual.com, that's the subdomain (that is, skynet is a subdomain of the domain ual.com). Usually you don't go too deep, and I'm not sure if there's a hard limit to this, but I believe even subdomains can have subdomains. But anyway, the owner of ual.com is the one that set up dmznam-esp under ual.com. I even had one created for a program my department uses to search through SHARES and Apollo source code, but that isn't accessible off the United company network.

As for the glitches, employeeres is honestly kind of buggy. I've noticed many stupid things that they have. If I were given a week to play around with it and fix whatever I'd find, I'd be a very happy man. Even if I couldn't make it 100% better. Sadly, I don't even know which department owns that site. Maybe clearing the cache would help? Otherwise, it could be a bug on their side, which will hopefully be fixed sooner than later.