You should handle the situation of a slim web browser area better. At the moment I have two browser windows open, splitting my screen real estate in half, and this website doesn't look very good.
On my 1600x900 browser, the little comic in the background is half hidden. Other than that, pretty neat. Not a new idea, but the more of these available the better!
your domain (mailseal.de) never changes. hence once it's been around long enough it'll start to be blacklisted on many sites that want to prevent temporary mail services
True, but it's hard to see how you can avoid that problem with services like this. Unless you are prepared to pay for new domain names more or less daily. Also, every time I use [email protected] I half expect to be rejected for this reason, but so far I never have been. I probably do that about once a month on average. And mailinator.com has been around for many years and is very well known.
