I'm attempting to follow the instructions located here
by sending an email to the JCA Code Signing Certification Authority at firstname.lastname@example.org with the required information and CSR.
However, the email is immediately bounced back from Oracle's servers with a message of
<email@example.com>: host aserp1060.oracle.com[188.8.131.52]
said: 553 5.3.0 <firstname.lastname@example.org>... 550:5.7.1 Internal
Lists are not available from the Internet. (in reply to RCPT TO command)