It is a forged email, just because an email has a reply to email address of whatever doesn't mean it actually came from there. According to my SpamCop it actually came from a virtua dot com dot br address.
Sure, but all spam filters should discard the email because the senders IP should not match the SPF record for the cpanel.net domain. cPanel have "-all" at the end of their SPF record, so any emails 'from' @cpanel.net addresses that aren't from their servers should be rejected.
and yes there is some SPF failure in the headers and it was detected as SPAM but still got through
-Spam-Report: Spam detection software, running on the system "******.com",
has identified this incoming email as possible spam. The original
message has been attached to this so you can view it or label
similar future email. If you have any questions, see
root\@localhost for details.