I think the problem can be that some mail accounts sends some e-mails directly to a big spam trash bin, without even letting the user see it. I tried registering here with a lot of different mail accounts, and none worked. But then I heard that gmail is more tolerant than others regarding this, and it worked out fine (the mail came in the spam folder, but I could at least go there and read it). So if more people wants a second chance, get a gmail-account!
”Sjakk Matt Jesu Krist”