Alexandru wrote: So, the issue is that a user registration gets flagged as spam, when it should not?
There're two issues:
1) That a user registration gets flagged as spam, when it should not.
2) When a user is flagged as spam and the user continues and click the link in the email for self activation, then it generates a 401 page. This happened when the redirect was done to a single article page with information about technical issues. I've change the redirect to the page of the registration form that the link in the email goes to, since the user might be blocked from any other page then the one set in the redirection.
Alexandru wrote: You are registering on your site with a different IP address and a different email domain than the ones in the above configuration, but you still get flagged as spam? Is this correct?
Yes