Might as well send it to their upstream abuse contacts and state their customer is unresponsive.
Ryan From: NANOG <nanog-bounces+ryan=rkhtech....@nanog.org> On Behalf Of Tim Burke Sent: Wednesday, September 7, 2022 1:10 PM To: nanog@nanog.org list <nanog@nanog.org> Subject: AS15960 abuse contact? Anyone have an abuse contact at AS15960 / bluehornet / mapp.com that doesn't go to /dev/null? I have been getting a ridiculous amount of political spam from them, and despite repeatedly unsubscribing and submitting abuse complaints, the garbage increases exponentially. V/r Tim