I'm deeply sorry, I made the change to the setup of the antispam system which
is causing this trouble; it was not working properly so we were getting
dozens of bad registrations daily, but the "fix" which made it work properly
has also blocked access to many of you.
I've changed the setup again to avoid the blocking of legit users, and I'm
reactivating all the affected accounts; I should be done in a bit, I'll
update the thread when I've finished this job. Feel free to of course write
or contact us if you are still locked out after I finish and post here again.
Sorry again, I should have realized this could happen :(