Attempting to add the following mailhosts to the SpamCop system:
Always results in the following error (note my email address has been purposefully obscured in the text below):
However, this email address is most definitely active and able to both send and receive email. This may be something I need to take up with the mailhost administrator, but I wanted to double check and make sure there's nothing wrong with SC.
I have been successfully able to add my mac.com mailhosts.
I can provide any additional information as necessary, though I might not be able to post all of it publicly for security reasons.
Thank you for your time.