Free shirts like this free GFI mail essentials t-shirt are a dime a dozen: we see a dozen of them, and lose a few dimes' worth of time getting none of them. Still, I'm going to cross my fingers because initial reports of this free shirt–which you reply on that page there, wait for an e-mail, and then that's where you reply for the shirt (and I'd match your e-mail addresses up, in case they're checking)–is that it was an offline offer, so maybe we'll be lucky?
Besides, I could always use another shirt that I'd never wear out in public as an exercise shirt. 🙂
EDIT: Hey folks, there's some confusion here. You don't need to download the software to get the shirt. It brings you to that page, and then you wait a few minutes, and the e-mail you get has a link to head to. So don't download anything, just hang tight after you submit it, and you'll be good.
[via the forums]