Report Spam, Phishing, and other abusive emails to "firstname.lastname@example.org". Follow the "Report Spam and Phishing Emails" link on https://internetsecurity.xfinity.com/help/report-abuse/ and the reporting instructions listed under that heading.
I just received one tonight, and unnerving is right! So wanted to say thank you for posting this. While I knew it was awful, vile suggesting, spam it helps greatly to know it was not just me. I did go check all my passwords that didn’t have that one lingering anywhere. Once again thank you for giving me peace tonight.