I set up a mailing list at http://www.freewillastrology.com/newsletter/ and it was working fine, but suddenly the unsubscribe function is broken.
Specifically, when I enter an email address in the unsubscribe field, it gives me the InvalidURL rather than NotOnURL or UnsubURL. I’ve tested with already subbed and not subbed addresses, but I get the Invalid Email page for both (and the test addresses I’ve been using aren’t malformed - I’ve been able to subscribe them without problems).
It just started doing this today, and I’m not sure why. Anybody have any ideas?