It’s a common problem that I had to deal with previously with two different forums of both GA and WorthPlaying.com. It’s rather cumbersome when you just want to get your account authenticated. My best guess is that it may have something to do with security like your firewall or whatever spamblocking sh*t you have. I’ve more than likely had some e-mails blocked for being suspicious.
Then again it could be a faulty email client software. When I tried to open up my email and get those accounts authenticated I was using Microsoft Outlook Express, which SUCKS, and had to ask the admins to unlock them manually. This is as versus to when I was using Mozilla Thunderbird, I was able to receive the email from GL here without a problem. And knowing that there are some GAites trying to get in here and having trouble while I didn’t indicates to me that this is a possibility. If they are viewing this then maybe switching e-mail clients would help.