Probably redundant to an earlier forward of mine, making this same point, but, I note:
$ dig -x 73.189.65.18 +short c-73-189-65-18.hsd1.ca.comcast.net. $
----- Forwarded message from logcheck system account logcheck@linuxmafia.com -----
Date: Mon, 03 Jun 2024 15:02:02 -0700 From: logcheck system account logcheck@linuxmafia.com To: root@linuxmafia.com Subject: linuxmafia.com 2024-06-03 15:02 System Events
System Events =-=-=-=-=-=-= Jun 3 14:48:39 linuxmafia named[15622]: client 73.189.65.18#16833: received notify for zone 'mpaoli.net' Jun 3 14:48:39 linuxmafia named[15622]: zone mpaoli.net/IN: refused notify from non-master: 73.189.65.18#16833 Jun 3 14:48:44 linuxmafia named[15622]: client 73.189.65.18#16833: received notify for zone 'mpaoli.net' Jun 3 14:48:44 linuxmafia named[15622]: zone mpaoli.net/IN: refused notify from non-master: 73.189.65.18#16833
----- End forwarded message -----